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Introduction Eagle syndrome is a rare and an often misdiagnosed entity in otorhinolaryngology. Objective To determine the efficacy of the surgical treatment for Eagle syndrome. Methods The present prospective study included 25 patients who presented with complaints of pain in the throat, ear, and neck, as well as difficulty and/or pain while swallowing; they were assessed for Eagle syndrome. As per patient profile, we performed a clinical assessments along with orthopantomograms (OPGs), three-dimensional computed tomography (3D CT) scans, and cone beam computed tomography (CBCT). Pain was assessed pre- and postoperatively through the Numerical Rating Scale-11 (NRS-11), whose score ranges from 0 to 10. Microscopic tonsillo-styloidectomy was performed in cases in which the conservative treatment failed to relieve pain. Results The mean age of the entire study population was of 36.08 ± 7.19 years, and the male-to-female ratio was of 1.08:1. Referred otalgia was the commonest (44%) complaint. Radiologically, out of 25 patients, 20 patients presented elongated styloid processes. The longest symptomatic styloid process measured radiographically was of 64.7 mm while the shortest was of 28.2 mm. Out of 20 patients, 12 underwent surgery. The postoperative pain assessment through the NRS-11 was performed on day 0 (3.83 ± 0.83), day 7 (1.5 ± 0.52), week 4 (0.5 ± 0.52), and week 12 (0.41 ± 0.51). By 12 weeks, 7 patients were symptom-free, while 5 patients still reported mild pain. Conclusion Eagle syndrome associated with an elongated styloid process is not a rarity, but it often goes undiagnosed. Microscopic tonsillo-styloidectomy shows excellent results in the management of patients with Eagle syndrome.

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El síndrome de Eagle o síndrome estilohioideo o sín-drome de la arteria carótida es un trastorno que se origina por la mineralización y elongación del pro-ceso estiloides. Factores traumáticos agudos y cró-nicos, así como otras teorías, han sido propuestos para explicar la etiología y patogenia de esta altera-ción. El conjunto de síntomas puede incluir: dolor fa-ríngeo, odinofagia, disfagia, cefalea, con irradiación a oreja y zona cervical. Si bien existen varias clasifi-caciones, de manera universal se acepta que existen principalmente dos formas de presentación de esta patología: el tipo I o clásico, generalmente asociado a un trauma faríngeo y acompañado de dolor en la zona faríngea y cervical, y el tipo II o carotídeo, que sue-le presentar molestia cervical, cefalea y alteración de la presión arterial, con riesgo de daño de la ac-tividad cardíaca. La identificación de este síndrome suele ser confusa dada la similitud de los síntomas con otras afecciones. El diagnóstico debe realizarse en base a los síntomas y a los estudios por imágenes específicos. El tratamiento puede ser conservador y actuar simplemente sobre los síntomas, o bien, qui-rúrgico. El objetivo del presente trabajo es realizar una revisión actualizada de la literatura sobre el sín-drome de Eagle y presentar tres casos clínicos con distintas manifestaciones (AU)

Eagle's syndrome or styloid syndrome or stylo-carotid artery syndrome is a disease caused by mineralization and elongation of the styloid process. Acute and chronic traumatic factors, along with other hypothesis, have been proposed to explain the aetiology and pathogenesis of this condition. Symptoms can include: pharynx pain, odynophagia, dysphagia, headache, with radiating pain to the ear and neck. Despite there are several classifications, it is universally accepted that this pathology can present in two forms: the type I or classic, generally associated to tonsillar trauma and characterized by pharyngeal and neck pain, and the type II or carotid artery type, which frequently presents with neck pain, headache, blood pressure variation, with risk of damage to cardiac function. Identifying of Eagle's syndrome is often confusing because some symptoms are shared with other pathologies. Diagnosis must be made on the basis of symptoms and imaging studies. Treatment can be conservative, acting only on symptoms, or surgical. The aim of this paper is to provide an updated review of the literature on Eagle syndrome and to present three clinical cases with different manifestations (AU)

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Resumen El síndrome de Eagle es una enfermedad rara responsable de múltiples síntomas de cabeza y cuello, resultado de un alargamiento del proceso estiloideo u osificación del ligamento estilohioideo comprimiendo estructuras neurovasculares adyacentes, hay dos variantes, el clásico caracterizado principalmente por dolor y disfagia y la variante carotídea distinguido con dolor y en ocasiones isquemia cerebral. Describimos un reporte de caso clínico de un paciente femenino de 45 años, quien experimentaba dolor cervical de lado izquierdo, realizando el protocolo completo de dolor miofascial del Hospital Regional General Ignacio Zaragoza ISSSTE de la Ciudad de México, el estudio de tomografía computada evidenció una elongación de 50mm del proceso estiloideo, confirmando el diagnóstico, enfocando el artículo en la descripción anatómico-quirúrgica.

Abstract Eagle syndrome is a rare disease responsible for multiple head and neck symptoms, resulting from an elongation of the styloid process or ossification of the stylohyoid ligament compressing adjacent neurovascular structures. There are two variants, the classic one characterized mainly by pain and dysphagia and the carotid variant distinguished with pain and sometimes cerebral ischemia. We describe a clinical case report of a 45-year-old female patient, who experienced left cervical pain, performing the complete myofascial pain protocol of the Regional Hospital "General Ignacio Zaragoza" ISSSTE in Mexico City, resulting in a 50mm elongation of the styloid process in the CT scan, confirming the diagnosis, and focusing the article on the anatomical-surgical description.

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Styloidogenic jugular venous compression syndrome has been recently described as a new cause of idiopathic intracranial hypertension. We present a 69-year-old patient, without other relevant medical history, presenting with 3 years of positional headache associated with decreased vision when reading and while turning her head to the right or left. She also reported pulsatile low-frequency tinnitus. Papilloedema was noted on the physical examination and, on imaging, an enlarged styloid process that induced jugular vein compression. The patient underwent styloidectomy with resolution of her symptoms and normalisation of her visual fields.

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OBJECTIVE: To determine the prevalence of the elongated styloid process (ESP) and its characteristics, such as sex and age of the patient, unilateral and bilateral incidence, besides variations between different populations and panoramic and CBCT examinations. MATERIALS AND METHODS: A search was performed in six databases (PubMed, Web of Science, Scopus, Cochrane, Lilacs, and Embase) to identify observational studies that used imaging exams and assessed ESP prevalence among panoramic radiograph CBCT examinations, whose transversal prevalence studies were included. Furthermore, studies with a specific group of patients or symptomatic patients were excluded. Additionally, Joanna Briggs Institute checklist was used to evaluate the quality of the studies. A meta-analysis was conducted, then subgroup analyses were performed by grouping studies according to the secondary outcomes, with a significance level set at 5%. The Grading of Recommendations Assessment, Development, and Evaluation system was used to rate the certainty in the evidence. RESULTS: The initial search resulted in 1635 studies, from which 39 articles met the inclusion criteria, encompassing 50,655 participants. The sample size varied between 82 and 5,000 participants. The prevalence of the ESP ranged from 1.3 to 94.8%, with an overall prevalence of 30.2%. The bilateral occurrence was higher than the unilateral one, but no significant predilection was observed according to sex, age, or population. The type of imaging examination also showed no difference in its detection. CONCLUSION: The overall prevalence of ESP was 30.2%, with a propensity for bilaterality, but not for any sex, age, or population geographic location. The imaging examination modality did not influence the diagnosis of ESP. However, the quality level of the studies evaluated was very low, demonstrating the need for more homogeneous primary studies on the prevalence of the ESP with a more standardized methodology. CLINICAL RELEVANCE: There is no consensus in the literature regarding the prevalence of the ESP and the characteristics of the affected patients that can cause chronic and debilitating discomfort in the head and neck region. Therefore, knowledge about the prevalence and characteristics of this condition would help dental clinicians reach the correct diagnosis.

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BACKGROUND: Eagle syndrome is an uncommon condition, characterized by alteration in the stylomastoid process and sometimes a complete calcification of the stylohyoid ligament. OBJECTIVE: To report the relevance of a timely diagnosis and treatment options. CASE REPORT: 53-year-old female, present symptoms, characterized by occipital headache and neck pain and dysphagia with one-year evolution, through studies Imaging and clinical, the diagnosis of eagle syndrome was obtained, which is treated by surgical transoral approach. CONCLUSIONS: Eagle syndrome consists of nonspecific clinical signs, so it is important to understand the diagnostic evaluation, and the variety of treatment options.

ANTECEDENTES: El síndrome de Eagle es una condición poco común caracterizada por una alteración en la apófisis estilomastoides o una calcificación completa del ligamento estilohioideo. OBJETIVO: Reportar la relevancia de un diagnóstico oportuno y las opciones de tratamiento. CASO CLÍNICO: Mujer de 53 años con síntomas de cefalea occipital, dolor cervical y disfagia con 1 año de evolución. Por medio de imagenología y la clínica se establece el diagnóstico de síndrome de Eagle, que fue tratado con un abordaje transoral. CONCLUSIONES: El síndrome de Eagle consta de signos clínicos inespecíficos, por lo que es importante comprender la evaluación diagnóstica y la variedad de opciones de tratamiento.

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SUMMARY: The objective of this study was to evaluate the role of the variations of carotid artery course on the relationship between styloid process (SP) and internal carotid artery (ICA). Carotid CT angiography scans of 170 patients were retrospectively evaluated. The variability of the course of ICA were classified. The length and medial angulation of the SP were measured on coronal 3D images. On axial images, the shortest distance between the bone edge of the SP and ICA were measured. The distance between SP and ICA among the course patterns of carotid artery were compared statistically. In the comparison of distances between SP and ICA with respect to the course of ICA, the difference between straight and curving (p <0.001) was statistically significant. Curving caused the separation of ICA and SP. The highest and the shortest distance was at the curving and coiling group, respectively. We found that SP-ICA distance has a positive and negative correlation with SP angle (p<0.001) and SP length (p<0.001), respectively. The course of ICA is one of the major determinants affecting the relationship of ICA and SP. The curving pattern of ICA has a tendency to increase the distance between SP and ICA.

RESUMEN: El objetivo de este estudio fue evaluar el rol de las variaciones que tiene el curso de la arteria carótida en la relación entre el proceso estiloides (PE) y la arteria carótida interna (ACI). Se evaluaron retrospectivamente angiografías por tomografía computarizada carotídea de 170 pacientes. Se clasificó la variabilidad del curso de ACI. Se midieron en imágenes coronales y en 3D la longitud y la angulación medial del PE. En las imágenes axiales, se midió la distancia más corta entre el margen del PE y la ACI. Se comparó estadísticamente la distancia entre PE y la ACI entre los patrones de trayecto de la arteria carótida. La comparación de las distancias entre PE y la ACI respecto al curso de ACI, fue estadísticamente significativa, siendo la diferencia entre arterias recta y curva (p <0,001). La arteria curva provocó la separación de la ACI y del PE. Las mayores y menores distancias estaban en el grupo de arterias curvas y enrolladas, respectivamente. La distancia PE-ACI tiene una correlación positiva y negativa con el ángulo PE (p <0,001) y la longitud del PE (p <0,001), respectivamente. El curso de la arteria carótida interna es uno de los principales determinantes que afectan la relación con el proceso estiloides. El patrón de curva de la ACI tiende a aumentar la distancia entre PE y la propia arteria arteria.

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Objective Surgical treatment of Eagle's syndrome remains the mainstay of treatment. Palsy of the marginal mandibular branch of the facial nerve is the most significant complication encountered in transcervical resections, due to direct compression during the approach. We proposed a modification of the craniocervical approach to the jugular foramen to resect the styloid process avoiding the marginal mandibular branch and subsequent palsy. Design This is a single-center retrospective cohort study. Setting The research was conducted at a tertiary medical center. Participants From November 2008 to October 2018, 12 patients with Eagle's syndrome underwent treatment using our modified approach. Main Outcome Measures Demographic data, type of Eagle's syndrome, symptomatic side, size of the styloid process, clinical outcomes, and complications were analyzed. Results Mean size of the styloid processes was of 3.34 cm on the operated side (2.3-4.7 cm) and 2.98 cm on the other (2-4.2 cm). Intraoperative facial nerve irritation occurred in one case. Resection of the entire styloid process was achieved in all cases. Eight cases experienced complete improvement, three cases had a partial response, and one case failed to improve. There were no cases of recurrence. Two patients presented transient postoperative auricular paresthesia. There were no cases of mandibular branch palsy, nor any other complications in our series. Conclusions Our modified transcervical approach is effective in avoiding the marginal mandibular branch of the facial nerve, avoiding postoperative palsy.

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INTRODUCTION: Sigmoid sinus diverticulum has been considered the most common cause of pulsatile tinnitus; the mechanism underlying sigmoid sinus diverticulum formation is unclear. To the best of our knowledge, no previous studies have assessed whether the formation of sigmoid sinus diverticulum is related to compression of the internal jugular vein by the styloid process. OBJECTIVE: To discuss the relationship between the styloid process and the formation of sigmoid sinus diverticulum. METHODS: The medical records of nine patients diagnosed with venous pulsatile tinnitus caused by sigmoid sinus diverticulum were reviewed between April 2009 and May 2019. All patients underwent high-resolution computed tomography of the temporal bones, computed tomography venogram of the head and neck, magnetic resonance venography, and brain magnetic resonance imaging. The length and medial angulation of the styloid process were measured, and compression of the internal jugular vein was recorded. RESULTS: The study population consisted of nine female right-sided pulsatile tinnitus patients with a mean age of 53.8±4.6 years. The mean lengths of the styloid process were 3.9±0.6cm on the right side and 4.1±0.7cm on the left side. The mean medial angulation of the styloid process was significantly smaller on the right side than the left side (65.3°±1.2° vs. 67.8°±1.7°, p<0.05). In addition, computed tomography venogram of the head and neck demonstrated the left internal jugular vein was compressed by the styloid process in eight of the nine patients. CONCLUSION: The formation of sigmoid sinus diverticulum with venous pulsatile tinnitus may be related to compression of the contralateral internal jugular vein by the styloid process. However, accumulation of data in additional cases is required to verify this suggestion.

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RESUMEN El complejo estilohioideo es una estructura ósea y ligamentosa, formada por varias entidades anatómicas como: la apófisis estiloides, el ligamento estilohioideo y el cuerno menor del hioides. La apófisis estiloides se origina en la porción timpánica del hueso temporal y mide en promedio 25 mm; en ocasiones puede encontrarse aumentada en longitud, situación que puede o no manifestarse con dolor. Objetivo: determinar la prevalencia de mineralización del complejo estilohioideo de pacientes de Ecuador mediante radiografías panorámicas digitales. Material y Métodos: Para ello se analizaron 2025 radiografías panorámicas digitales de pacientes de ambos sexos, de edades entre 12 a 92 años, del período comprendido entre los años 2015-2016. Se consideró como complejo estilohioideo mineralizado, cuando este sobrepasaba los 25mm. Resultados: Se observaron 2025 radiografías panorámicas,de las cuales 1206 (59,6%) radiografías, mostraron algún tipo de mineralización del complejo estilohioideo. De estas 1288 (63,6%) pertenecen al sexo femenino y 737 (36,4%) al sexo masculino. La presentación más frecuente fue bilateral. Además, se encontró que en los adultos mayores la prevalencia alcanzaba el 76%. Conclusiones: En el presente estudio se muestra que existe una alta prevalencia de mineralización del complejo estilohioideo en la población estudiada.

SUMMARY The stylohyoid complex is a bony and ligamentous structure, formed by several anatomical entities such as the styloid process, the stylohyoid ligament and the horn of the hyoid. The styloid process originates in the tympanic portion of the temporal bone and measures an average of 25 mm; sometimes it may be increased in length, a situation that may or may not have pain itself. Objective: To determine the prevalence of mineralization of the stylohyoid complex of patients at the country of Ecuador using digital panoramic radiographs. Material and methods: Analysis of 2025 digital panoramic radiographs of patients of both sexes, between 12 and 92 years of age, from the period 2015-2016. It was considered as mineralized stylohyoid complex, when it exceeded 25mm. Results: Of the 2025 panoramic radiographs, it was concluded that 1206 (59.6%) radiographs showed some type of mineralization of the stylohyoid complex. Of these 1288 (63.6%) belong to the female sex and 737 (36.4%) to the male sex. The most frequent presentation was bilateral. In addition, it was found that in older adults the prevalence reached 76%. Conclusions: In the present study it is shown that there is a high prevalence of mineralization of the stylohyoid complex in the population studied.

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The objective of the present study was to evaluate the morphology and angulation of the styloid process (SP), analyzing results stratified by gender, side and age on asymptomatic patients. We retrospectively analyzed 99 high-resolution computed tomography study images from asymptomatic patients. The images were assessed intra-observatory by a head and neck expert radiologist. Data for length, morphology, and angulation in a coronal and sagittal plane were recorded and stratified by age and gender. Morphology was classified according to the Langlais modified by Guimares classification. The mean lengths were 31.67±0.97mm and 31.64±0.90mm for the right and left sides respectively. Using the Langlais modified by Guimares classification, the normal type was the most prevalent and without a statistically significant difference when comparing between genders. A total of 27.6% presented a morphologically elongated SP (>25mm of continuous process), 49.5% presented a radiologically elongated SP (>30mm), and a total of 9.59% had a longer length than the proposed≤45mm. The right transverse angle was greater in men than women, and a statistically significant difference was found (P=0.010). We show the morphological variability of the SP. Although our results are reported with the traditional definition, the high prevalence supports the need for a new definition of elongated SP and a normal angulation ranges.

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RESUMEN Un síndrome caracterizado por dolor cervical y un apófisis estiloides alargado fue descrito por primera vez por Watt Eagle en 1937. Aunque el síndrome de Eagle en su variante vascular es raro y no es reconocido como causa clara de disección carotídea, en los últimos años ha sido reportado un incremento del número de casos de disección carotídea causada por una apófisis estiloides alargada. Paciente de 56 años que acudió al servicio de urgencias por paresia facial izquierda aguda y habla confusa. Presentaba dolor cervical de dos días de evolución, relacionado con un ataque de tos. Se activó el código ictus y la tomografía computarizada (TC) mostró isquemia del lóbulo temporal derecho y disección bilateral de la arteria carótida interna. La angio-TC de los troncos supraaórticos con reconstrucción tridimensional, identificó una apófisis estiloides alargado en ambos lados. El paciente fue sometido a una angioplastía con colocación de dos stents. Debido al alto riesgo de padecer nuevo ictus, se decidió realizar tratamiento quirúrgico. Para el lado derecho se realizó un abordaje transoral y en el izquierdo un abordaje abierto. La apófisis estiloides alargado es una causa importante de disección carotídea y de las complicaciones cerebrovasculares relacionadas.

ABSTRACT A syndrome characterized by cervical pain and an abnormally elongated styloid process was first described by Watt Eagle in 1937. Even though vascular Eagle syndrome is uncommon and is not well recognized as a cause for carotid artery dissection, in the last few years there have been an increasing number of case reports of carotid artery dissection caused by an elongated styloid process. A 56 years old man presented to the emergency department with acute left facial weakness and slurred speech. He complained of two days neck pain, related to a coughing fit. The code stroke protocol was activated and imaging showed a right temporal bone stroke and a bilateral internal carotid artery dissection. A scan angiography of the supra-aortic vessels with 3D reconstruction was performed showing a bilateral abnormally elongated styloid process. The patient underwent angioplasty with two stent placements. Due to the high risk of recurrent strokes, the patient was evaluated in the otolaryngology department for styloid process resection. Finally a transoral approach for the right side and an open approach for the left side were performed. We have to consider an elongated styloid process as an important cause of carotid artery dissection and subsequent cerebrovascular complications

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PURPOSE: To assess radiographically the presence of an ossified stylohyoid complex (OSHC) with signs and symptoms of Eagle syndrome or other oro-facial painful diseases in patients attending our institution and to confirm that the important issue for study is to know the length of the ossificated portion of the stylohyoid complex only. METHODS: We separated 1000 consecutive files, and after selection, 922 panoramic radiographs were evaluated. Assessed parameters were gender and age of the patients, size, and location of the analyzed OSHCs. In addition, the length parameters of the studied OSHCs were also determined in 100 extra radiographs. RESULTS: Normal length of OSHCs was between 2.83 and 4.16 cm and OSHCs measuring more than 4.17 cm long comprising 23.2% of the sample. Any of the patients with OSHC presented signs or symptoms of the Eagle syndrome or any other orofacial painful disease. CONCLUSIONS: This is the first study on OSHCs using the mandatory parameters of normal, short and elongated length in the studied population. Our results suggest that the presence of an OSHC is not an important feature for pain detection in the Eagle syndrome and is not an important risk factor for development of throat pain in this and other painful orofacial diseases. Our results are different from those previously published in other populations and suggest that the widely used lengths of 2 to 4 cm for measuring the OSHCs are not adequate parameter. It is desirable to define first the short, normal and abnormal parameters of OSHCs in each studied population.

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Skeletal remains are crucial in forensic identification of the sex, especially human skulls including the styloid process, a bony projection from the skull. Hence, the objectives of the present study were undertaken to assess the value of the styloid process for the sex identification of unknown skulls and also to investigate the prevalence of elongated styloid process in 102 human dry skulls from the northeast Thai population. As a result, the interstyloid distances at both base and tip of the styloid processes were found to be significantly different between male and female specimens, although no significant difference was found in the length of the styloid process between males and females. In addition, the occurrence of the elongated styloid process was not associated with the gender, although its prevalent laterality on the left was recognized. It is suggested that the styloid process can be applied to the sex identification by measuring the interstyloid distance at the base or the tip of these processes.

Los restos óseos son cruciales para la identificación forense del sexo, especialmente en los cráneos humanos, incluyendo el proceso estiloides, una proyección ósea del cráneo. Por lo tanto, los objetivos del presente estudio consistieron en evaluar el valor del proceso estiloides en la identificación del sexo de cráneos desconocidos y también para investigar la prevalencia del proceso estiloides elongado en 102 cráneos secos humanos de la población del Noreste de Tailandia. Como resultado, se encontró que las distancias inter-estiloides tanto en la base y la punta de los procesos estiloides eran significativamente diferentes entre las muestras de hombres y mujeres, aunque no se encontró diferencia significativa en la presencia del proceso estiloides entre ambos. Además, la aparición del proceso estiloides elongado no se asoció con el sexo, aún cuando se observó su prevalencia en el lado izquierdo. Sugerimos que el proceso estiloides se puede utilizar en la identificación del sexo mediante la medición de la distancia inter-estiloide en la base o en la punta de estos procesos.

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Abstract: painful disorders in the maxillofacial region are common in dental practice. Most of these conditions are not properly diagnosed because of inadequate knowledge of craniofacial and cervico-pharyngeal syndromes such as Eagle Syndrome. The aim of this review is to describe the general aspects, diagnosis and treatment of Eagle syndrome. Eagle syndrome or stylohyoid syndrome was first described by Watt W. Eagle in 1937. It was defined as orofacial pain related to the elongation of the styloid process and ligament stylohyoid calcification. The condition is accompanied by symptoms such as dysphonia, dysphagia, sore throat, glossitis, earache, tonsillitis, facial pain, headache, pain in the temporomandibular joint and inability to perform lateral movements of the neck. Diagnosis and treatment of Eagle syndrome based on symptoms and radiographic examination of the patient will determine the need for surgical or nonsurgical treatment. Eagle syndrome is a complex disorder demanding a thorough knowledge of its signs and symptoms to make a correct diagnosis and provide an appropriate subsequent treatment. Disseminating information about this syndrome among medical-dental professionals is essential to provide adequate dental care to patients.

Resumen: en la práctica odontológica, es frecuente encontrar alteraciones con sintomatología dolorosa en la región maxilofacial, las cuales no son apropiadamente diagnosticadas, a causa del desconocimiento de síndromes craneofaciales y cervicofaríngeos, como el Síndrome de Eagle. El objetivo de esta revisión es describir los aspectos generales, diagnóstico y tratamiento del Síndrome de Eagle. El Síndrome de Eagle o estilalgia es la entidad nosológica, descrita por Watt W. Eagle en 1937, definida como aquel dolor orofacial relacionado con la elongación de la apófisis estiloides y calcificación del ligamento estilohioideo; el cual está acompañado de síntomas como: disfonía, disfagia, dolor faríngeo, glositis, otalgia, tonsilitis, dolor facial, cefalea, odinofagia, dolor en la articulación temporomandibular e imposibilidad de realizar movimientos laterales del cuello. El diagnóstico y tratamiento del Síndrome de Eagle está basado en la sintomatología y el examen radiográfico del paciente, lo cual determinará el tratamiento quirúrgico o no quirúrgico. El Síndrome de Eagle es una patología compleja que requiere un conocimiento amplio de sus signos y síntomas, para establecer un correcto diagnóstico y posteriormente un adecuado tratamiento. Para ello, es necesario difundir la información sobre este síndrome entre los profesionales médico-odontológico y así brindar una atención adecuada a cada uno de los pacientes.

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El síndrome de Eagle es una condición infrecuente caracterizada por una elongación de la apófisis estiloides y/o una calcificación del ligamento estilohioideo. Clinicamente los pacientes presentan una larga historia de dolor crónico cervicofacial, tratado por múltiples especialistas y mediante variadas estrategias terapéuticas. El diagnóstico requiere de un alto índice de sospecha, basado fundamentalmente en la anamnesis y el examen físico. Presentamos una revisión y actualización sobre el síndrome de Eagle, abarcando sus aspectos clínicos relevantes, su diagnóstico y tratamiento.

Eagle syndrome is a rare condition characterized by an elongation of the styloid process and /or calcification of the stylohyoid ligament. Clinically, patients present with a history of chronic cervicofacial pain, treated by multiple specialists and through various therapeutic strategies. The diagnosis requires a high index of suspicion, based primarily on the history and physical examination. We review and update on Eagle syndrome, covering their relevant clinical aspects, diagnosis and treatment.

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BACKGROUND: The styloid process (SP) arises from cartilage of the second branchial arch and tends to calcify during later life. If the length of the SP is more than 30 mm, it can be considered abnormally elongated. Clinical symptoms associated with elongation of this type are defined as Eagle's syndrome. The paper presents a case of an elongated SP in a modern skull from Puerto Cabello, Venezuela, obtained from a series of skulls of African slaves kept at the Department of Anthropology, Polish Academy of Sciences in Wroclaw. MATERIALS AND METHODS: The skull belonged to a male individual, aged ca. 55 years at death (maturus). In terms of basic anthropometric features it had slightly greater facial width parameters in comparison to the cerebral part, and a shorter length of neurocranium when compared to average values of morphological features in African skulls from Uganda. RESULTS: Further macroscopic analysis revealed the presence of an elongated SP (ca. 70.1 mm) with secondary lesions remaining after a healed fracture. Imaging of the bone structure of the elongated SP was carried out using a computed to-mography scan, with multilevel image analysis without contrast. The elongation and calcification of the left ligament in anterior orientation could have caused irritation to the structure of cranial nerves, running within the parapharyngeal space, and to sympathetic fibres running in the wall of cervical arteries. CONCLUSIONS: Analyses of craniological materials recovered during excavations or as part of old osteological collections are rare due to the fragility of this bone structure, and for that reason they may be a valuable source of information on the health status of historic human populations.

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Introducción: alteraciones de este aparato estilohioideo son frecuentes y se manifiestan por el alargamiento del proceso estiloides y también por la osificación del ligamento estilohioideo. Los cambios pueden ser asintomáticos o pueden desencadenar una serie de síntomas como el dolor en cabeza. Objetivo: determinar la prevalencia del alargamiento del proceso estiloide y de la osificación del ligamento estilohioideo en radiografías panorámicas, atendiendo a la distribución según edad, sexo y lado afectado. Métodos: se tomaron 300 radiografías panorámicas digitales de los archivos de un Servicio de Radiología Dental. Fueron seleccionadas al azar entre las realizadas en 2012, y evaluadas por un único examinador. Fueron consideradas las radiografías en las cuales el proceso estiloide del hueso temporal superaba en más de 1 cm el borde más inferior del cartílago del lóbulo de la oreja y aquellas en la que el ligamento estilohioideo aparecía radiopaco. Resultados: en este estudio, se encontraron 108 radiografías (36 por ciento) con estas condiciones. Hubo una mayor prevalencia de alargamiento del proceso estiloide y/o la osificación del ligamento estilohioideo en mujeres (63 por ciento); se presentó bilateralmente en 72 por ciento de los casos, con mayor prevalencia en el rango etario de 61 a 70 años. Conclusión: la prevalencia de alteraciones en el complejo estilohioideo en las radiografías analizadas fue de 36 por ciento, la mayoría con presentación bilateral; predominó en mujeres del grupo etario referido(AU)

Introduction: alterations of the stylohyoid chain are common, taking the shape of styloid process elongation and stylohyoid ligament ossification. Changes may either be asymptomatic or trigger a number of symptoms such as headache. Objective: determine the prevalence of styloid process elongation and stylohyoid ligament ossification in panoramic radiographs based on distribution by age, sex and affected side. Methods: examination was conducted of 300 digital panoramic radiographs from the registries of a dental radiology service. Radiographs were randomly selected from among those performed in 2012, and evaluated by a single researcher. The radiographs considered were those in which the temporal styloid process exceeded in more than 1 cm the lowermost edge of the earlobe cartilage and those in which the stylohyoid ligament was radiopaque. Results: the study found 108 radiographs (36 percent) meeting these requirements. There was a higher prevalence of styloid process elongation and/or stylohyoid ligament ossification among women (63 percent), whereas the condition was bilateral in 72 percent of the cases, with a predominance of the 61-70 age group. Conclusion: prevalence of alterations of the stylohyoid complex in the radiographs analyzed was 36 percent. Most alterations were bilateral. There was a predominance of women from the above-mentioned age group(AU)

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OBJECTIVE: This article aimed to summarize our clinical experience with a standardized tonsil-sparing transoral surgical approach used for treatment of styloid process-carotid artery Eagle's syndrome. METHODS: Eleven consecutive patients, from 2007 to 2013, underwent surgical treatment to remove elongated styloid apophyses transorally. Outcomes were assessed in terms of intraoperative and postoperative complications and patients' evolution. RESULTS: No patient experienced any intraoperative or postoperative complications. All patients have been followed up to present and 10 of them have shown complete relief of the symptoms and improvement of functional ability. CONCLUSION: The tonsil-sparing transoral surgical approach described is suitable for treating patients with elongated styloid apophyses.

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Styloid syndrome is characterized by an elongated styloid process or calcification of the stylomandibular and stylohyoid ligament. This study describes a case of a 65-year-old woman who presented to the Stomatology Clinic, University of Marilia with temporomandibular joint pain, ear ringing and a reduced ability to open the mouth. Panoramic and posteroanterior digital radiographs showed bilateral elongation of the styloid processes, especially of the right side, whose length extended beyond the mandible angle. The diagnosis was confirmed with the association of clinical data and image examinations. The treatment options for styloid Syndrome include clinical follow-up, surgical removal of the styloid process or fracture of the elongated process. The case was managed by providing prosthetic rehabilitation and clinical follow-up, observing the level of discomfort and the benefit that could be achieved by the therapy, and avoiding surgical intervention.

El síndrome estilode (Síndrome de Eagle) se caracteriza por un proceso estiloides alargado o calcificación de los ligamentos estilohioideo y estilomandibular. Este estudio describe el caso de una mujer de 65 años de edad que concurrió a la Clínica Estomatológica de la Universidad de Marilia con dolor de la articulación temporomandibular, zumbido en los oídos y una disminución de la capacidad de abrir la boca. Las radiografías digitales panorámica y posteroanterior mostraron alargamiento bilateral de los procesos estiloides, especialmente del lado derecho, cuya longitud se extendió más allá del ángulo de la mandíbula. El diagnóstico se confirmó con la asociación de los datos clínicos y los exámenes de imagen. Las opciones de tratamiento para el síndrome estiloide incluyen el seguimiento clínico, la extirpación quirúrgica del proceso estiloides o la fractura del proceso alargado. El caso fue tratado con rehabilitación protésica y seguimiento clínico, observando el nivel de molestia y el beneficio que se podría lograr mediante la terapia, evitando la intervención quirúrgica.

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