RESUMEN

Mucinous and medullary breast cancers (BCs) have different histological substrates that manifest as different imaging features on mammography, ultrasound, and MRI. The aim of the present review is to demonstrate the differences between these two rare BC subtypes and to describe the microscopic features, review the imaging methods for detection of both cancer subtypes, illustrate the imaging findings and present useful pearls and pitfalls. Out of a total of 30 patients with mucinous BC and nine with medullary BC, we have selected typical and also unusual imaging features that best represent these cancers. The patients underwent a mammography and breast ultrasound followed by magnetic resonance imaging. We briefly exhibit histological characteristics for a better understanding of the imaging aspects.

Asunto(s)

Adenocarcinoma Mucinoso/diagnóstico por imagen , Neoplasias de la Mama/diagnóstico por imagen , Mama/diagnóstico por imagen , Carcinoma Medular/diagnóstico por imagen , Adenocarcinoma Mucinoso/patología , Mama/patología , Neoplasias de la Mama/patología , Carcinoma Medular/patología , Femenino , Humanos , Imagen por Resonancia Magnética , Mamografía , Ultrasonografía Mamaria

RESUMEN

The European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) recommends that ultrasound should be used systematically as an easy accessible and instructive educational tool in the curriculum of modern medical schools. Medical students should acquire theoretical knowledge of the modality and hands-on training should be implemented and adhere to evidence-based principles. In this paper we report EFSUMB policy statements on medical student education in ultrasound that in a short version is already published in Ultraschall in der Medizin 1.

RESUMEN

The European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB) recommends that ultrasound should be used systematically as an easy accessible and instructive educational tool in the curriculum of modern medical schools. Medical students should acquire theoretical knowledge of the modality and hands-on training should be implemented and adhere to evidence-based principles. In this paper we summarise EFSUMB policy statements on medical student education in ultrasound.

Asunto(s)

Educación Médica , Sociedades Médicas , Ultrasonografía , Curriculum , Medicina Basada en la Evidencia , Alemania , Humanos

RESUMEN

OBJECTIVES: To describe the imaging findings in a series of patients with mesothelioma of the tunica vaginalis testis. METHODS: We reviewed clinical data, imaging findings and follow-up information in a series of 10 pathology-proven cases of mesothelioma (all had US; 2 had MR) of the tunica vaginalis. RESULTS: A variety of patterns could be observed, the most common (5/10) being a hydrocele with parietal, solid and hypervascular vegetations; one patient had a septated hydrocele with hypervascular walls; one had multiple, solid nodules surrounded by a small, physiological quantity of fluid; one a cystic lesion with thick walls and vegetations compressing the testis; two had a solid paratesticular mass. MR showed multiple small nodules on the surface of the tunica vaginalis in one case and diffuse thickening and vegetations in the other one; lesions had low signal intensity on T2-w images and were hypervascular after contrast injection. CONCLUSIONS: A preoperative diagnosis of mesotheliomas presenting as solid paratesticular masses seems very difficult with imaging. On the contrary, the diagnosis must be considered in patients in whom a hydrocele with parietal vegetations is detected, especially if these show high vascularity. KEY POINTS: Mesotheliomas of the tunica vaginalis are rare, often challenging to diagnose preoperatively. Most common finding is a complex hydrocele with hypervascular parietal vegetations. Septated hydrocele, nodules without hydrocele, a thick-walled paratesticular cyst are less common. Preoperative diagnosis may allow aggressive surgical approach and, possibly, a better prognosis.

Asunto(s)

Imagen por Resonancia Magnética/métodos , Mesotelioma/diagnóstico por imagen , Neoplasias Testiculares/diagnóstico por imagen , Adulto , Anciano , Anciano de 80 o más Años , Medios de Contraste , Diagnóstico Diferencial , Estudios de Seguimiento , Humanos , Masculino , Mesotelioma/irrigación sanguínea , Mesotelioma/diagnóstico , Persona de Mediana Edad , Estudios Retrospectivos , Tasa de Supervivencia , Hidrocele Testicular/diagnóstico , Hidrocele Testicular/diagnóstico por imagen , Neoplasias Testiculares/irrigación sanguínea , Neoplasias Testiculares/diagnóstico , Resultado del Tratamiento , Ultrasonografía Doppler en Color/métodos

RESUMEN

Because polycystic ovarian syndrome (PCOS) is a risk factor for type 2 diabetes, the affected women can present frequently prediabetic states such as impaired fasting glycaemia and/or impaired glucose tolerance. The purpose of our study is to explore the effect of antiandrogenic spironolactone on glucose metabolism and oxidative stress (OS) parameters in oestradiol valerate (OV) induced PCOS rat model.72 female Wistar rats were distributed either to PCOS group (n=65, OV dissolved in sesame oil, 5 mg/0.4 ml), or to non-PCOS control group (n=7, sesame oil, 0.4 ml). After a month, ultrasound was performed to assess the ovarian morphology, and the results of an initial oral glucose tolerance test (OGTT) were used to identify the animals with altered glucose metabolism (AGM). Glucose transporter 4 (GLUT4) was evaluated from muscle biopsies, OS parameters were assessed from blood and muscle samples, and ovaries of 3 rats were removed for histopathological examination. Afterwards, the AGM group was divided in a treated PCOS group denoted as Sp+D (per os spironolactone dissolved in DMSO, 2 mg/0.2 ml), and a PCOS control treated with DMSO (0.2 ml). After one month of daily treatment, a final OGTT was performed. GLUT4 and OS parameters were again evaluated and ovaries were removed for histopathological examination.As compared to the values prior to the treatment, Sp+D reversed fasting hyperglycaemia (p<0.001), increased GLUT4 immunoreactivity in the perinuclear compartment (p<0.05) and translocation to plasmalemma (p<0.001) and improved superoxide dismutase (0.001

Asunto(s)

Dimetilsulfóxido/farmacología , Diuréticos/farmacología , Glucosa/metabolismo , Estrés Oxidativo/efectos de los fármacos , Síndrome del Ovario Poliquístico/metabolismo , Espironolactona/farmacología , Animales , Antioxidantes/metabolismo , Biomarcadores/sangre , Estradiol/análogos & derivados , Femenino , Prueba de Tolerancia a la Glucosa , Transportador de Glucosa de Tipo 4/metabolismo , Inmunohistoquímica , Fibras Musculares Esqueléticas/metabolismo , Ovario/diagnóstico por imagen , Ovario/patología , Síndrome del Ovario Poliquístico/inducido químicamente , Síndrome del Ovario Poliquístico/diagnóstico por imagen , Ratas , Ratas Wistar , Ultrasonografía

RESUMEN

PURPOSE: To describe the sonoelastographic appearance of breast cysts (simple, complicated-cysts with sedimentation and complex-cysts with internal solid parts). To assess the influence of sonoelastography on the BI-RADS classification of complicated cysts. MATERIALS AND METHODS: A prospective study was conducted and all cysts diagnosed by the same radiologist between May 2007 and July 2008 in our breast unit were included. Each lesion was assessed according to BI-RADS and the Tsukuba elasticity score using a Hitachi 8500 US device. Cytology or histopathology was obtained for complicated and complex cysts. RESULTS: 49 simple, 43 complicated and 14 complex cysts were detected. The elasticity patterns were divided into 4 categories: typical BGR (blue-green-red) pattern, appearance similar to that described for solid. lesions, variants of BGR, an inverse score of 3. The BGR pattern was predominant in breast cysts. Atypical elasticity patterns were mostly associated with complicated and complex cysts. BI-RADS classification of complicated cysts before and after elastography showed a statistically significant difference in terms of final category assessment (most of the complicated cysts were downgraded to BI-RADS 2 after elastography). CONCLUSION: Being aware of the wide spectrum of elastographic patterns of breast cysts and considering elastography when assessing the BI-RADS category of complicated cysts may lead radiologists to better patient management.

Asunto(s)

Neoplasias de la Mama/diagnóstico por imagen , Diagnóstico por Imagen de Elasticidad/métodos , Enfermedad Fibroquística de la Mama/diagnóstico por imagen , Ultrasonografía Mamaria/métodos , Adulto , Biopsia con Aguja Fina , Mama/patología , Neoplasias de la Mama/clasificación , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/clasificación , Carcinoma Ductal de Mama/diagnóstico por imagen , Carcinoma Ductal de Mama/patología , Carcinoma Intraductal no Infiltrante/clasificación , Carcinoma Intraductal no Infiltrante/diagnóstico por imagen , Carcinoma Intraductal no Infiltrante/patología , Carcinoma de Células Escamosas/clasificación , Carcinoma de Células Escamosas/diagnóstico por imagen , Carcinoma de Células Escamosas/patología , Diagnóstico Diferencial , Femenino , Enfermedad Fibroquística de la Mama/clasificación , Enfermedad Fibroquística de la Mama/patología , Humanos , Persona de Mediana Edad , Papiloma/clasificación , Papiloma/diagnóstico por imagen , Papiloma/patología , Estudios Prospectivos , Sensibilidad y Especificidad

RESUMEN

PURPOSE: The aim of the study was to assess the influence of technical factors and/or lesion characteristics on the final elastographic score in solid breast nodules. MATERIALS AND METHODS: Patients with solid breast masses examined between May 2007 and May 2008 in the Radiology Department of Cluj District University Hospital were included in the study. All lesions were examined with conventional ultrasound, Doppler ultrasound and sonoelastography, according to a preset protocol. The influence of the following factors on the elastographic score was evaluated: type of section (sagittal versus transverse); size of region of interest (small versus large); amplitude and frequency of movement; initial compression (light versus strong); angulation (perpendicular versus angulated transducer); characteristics of the lesion (size and location). The reference diagnosis was the histopathology diagnosis and, in twenty cases, short-term follow-up. RESULTS: Ninety-two patients with a mean age of 48.11 years and 101 breast nodules were included in the study. The overall sensitivity and specificity for elastography were 79 % [68-88 %] and 79 % [65 - 89 %], respectively, with a negative predictive value of 74 % [60-85 %] and a positive predictive value of 84 % [72-91 %]. The following factors did not influence the elastographic score: type of section (scores on transverse and longitudinal section, Z = -0.641, p = 0.552); the amplitude and frequency of movements during the elastographic examination (Cochran's Q concordance = 0.706, p = 0.872); strong initial compression in the case of benign nodules (Z = 0.000, p = 1.000); size of the lesions. Of the elastographically benign nodules, 9 were false negative and of the 46 elastographically malignant nodules, 12 were false positive. The following factors influenced the elastographic scores: size of the region of interest (the scores were significantly different when small or large region of interest was used, Z = -0.671, p < 0.0001); transducer angulation (Z = -5.42, p < 0.0001); strong initial compression in the case of malignant nodules (Z = -6.044, p < 0.0001) and the location of the mass in the vicinity of the chest wall. CONCLUSION: The most important factors that influence the final elastographic score, leading to false negative results, are the size of the region of interest, the initial compression and angulation of the transducer, while the frequency and amplitude of movement during the examination proved to be of no importance as long as the images were obtained within a range of assessment usefulness. Changing the scanning parameters never led to false positive results in the case of malignant breast masses.

Asunto(s)

Neoplasias de la Mama/diagnóstico por imagen , Diagnóstico por Imagen de Elasticidad/métodos , Diagnóstico por Imagen de Elasticidad/estadística & datos numéricos , Procesamiento de Imagen Asistido por Computador/métodos , Carga Tumoral/fisiología , Ultrasonografía Doppler/métodos , Ultrasonografía Mamaria/métodos , Adulto , Anciano , Anciano de 80 o más Años , Mama/patología , Neoplasias de la Mama/patología , Carcinoma Ductal de Mama/diagnóstico por imagen , Carcinoma Ductal de Mama/patología , Carcinoma Intraductal no Infiltrante/diagnóstico por imagen , Carcinoma Intraductal no Infiltrante/patología , Carcinoma Lobular/diagnóstico por imagen , Carcinoma Lobular/patología , Diagnóstico por Imagen de Elasticidad/normas , Femenino , Fibroadenoma/diagnóstico por imagen , Fibroadenoma/patología , Humanos , Procesamiento de Imagen Asistido por Computador/normas , Mesenquimoma/diagnóstico por imagen , Mesenquimoma/patología , Persona de Mediana Edad , Invasividad Neoplásica , Tumor Filoide/diagnóstico por imagen , Tumor Filoide/patología , Valor Predictivo de las Pruebas , Transductores , Ultrasonografía Doppler/normas , Ultrasonografía Mamaria/normas , Adulto Joven

Asunto(s)

Enfermedades de la Mama/diagnóstico por imagen , Calcinosis/diagnóstico por imagen , Carcinoma Ductal de Mama/diagnóstico por imagen , Diagnóstico por Imagen de Elasticidad/métodos , Mama/patología , Enfermedades de la Mama/diagnóstico , Calcinosis/diagnóstico , Carcinoma in Situ/diagnóstico por imagen , Carcinoma in Situ/patología , Carcinoma in Situ/cirugía , Carcinoma Ductal de Mama/patología , Carcinoma Ductal de Mama/cirugía , Femenino , Estudios de Seguimiento , Humanos , Mamografía , Persona de Mediana Edad , Resultado del Tratamiento , Ultrasonografía/métodos

RESUMEN

Arterio-venous vascular malformations (AVM) rarely occur in craniofacial bones. The most frequent location has been reported in the mandible. The first clinical evidence of the lesions can be a fatal hemorrhage, occurring spontaneously or subsequent to dental therapy. Lack of knowledge about these lesions among specialists dealing with the oral and maxillofacial regions can lead to fatal complications. The study presents the successful multidisciplinary management of two cases of mandibular AVM using embolization, sclerotherapy and bone reconstruction, a major challenge owing to the substantial risk of morbidity, recurrence by recanalization and revascularization, neurologic deficits and mortality. There were no complications over a follow-up period of 12 years.

Asunto(s)

Malformaciones Arteriovenosas/terapia , Embolización Terapéutica , Enfermedades Mandibulares/terapia , Procedimientos de Cirugía Plástica , Escleroterapia , Angiografía , Malformaciones Arteriovenosas/complicaciones , Malformaciones Arteriovenosas/diagnóstico por imagen , Malformaciones Arteriovenosas/cirugía , Niño , Estudios de Seguimiento , Hemorragia Gingival/etiología , Humanos , Comunicación Interdisciplinaria , Masculino , Enfermedades Mandibulares/complicaciones , Enfermedades Mandibulares/diagnóstico por imagen , Enfermedades Mandibulares/cirugía , Grupo de Atención al Paciente , Procedimientos de Cirugía Plástica/métodos , Tomografía Computarizada por Rayos X , Resultado del Tratamiento

RESUMEN

The purpose of this study was to point out a case with orbital venous abnormalities at the left eye, associated with varices of the legs. The clinical picture of this case was: intermittent exophthalmos, venous malformations at the level of the lids and episclera, elevated ocular pressure. All this signs reveal an abnormality at the level of venous wall, indicating a constitutional weakness of the venous system. The case was investigated by imagistic methods: ultrasound examination, Doppler -ultrasound and magnetic resonance imaging. According to the facts offered by clinical and imagistic investigation this case can be included into the first type of orbital varices, associated with secondary glaucoma provoked by an elevated episcleral venous pressure.

Asunto(s)

Órbita/irrigación sanguínea , Várices/diagnóstico , Diagnóstico Diferencial , Femenino , Glaucoma/diagnóstico , Glaucoma/etiología , Glaucoma/terapia , Humanos , Imagen por Resonancia Magnética , Persona de Mediana Edad , Resultado del Tratamiento , Ultrasonografía Doppler en Color , Várices/complicaciones , Várices/diagnóstico por imagen , Várices/terapia

RESUMEN

The purpose of this study was to present the actual performances of the imagistic techniques for the complete investigation of secondary glaucoma. For this aim there were selected patients from the Ophthalmologic Clinic Cluj-Napoca. They have been submitted to ultrasound investigations, fluorescein angiography and magnetic resonance imaging techniques. Ultrasound techniques: A-scan, B-scan and Doppler allow to track and discriminate the ocular and orbital diseases which can offer the bases of correct diagnosis in secondary glaucoma. The color Doppler assures a good visualization of neovascularization, tumoral vascularization, arterio-venous abnormalities. Magnetic resonance imaging completes the data obtained by ultrasound and fluorescein angiographique techniques. The imagistic techniques associated with the clinical features offer the bases of the diagnostic and proper therapy in secondary glaucoma.

Asunto(s)

Glaucoma de Ángulo Abierto/diagnóstico , Anciano , Anciano de 80 o más Años , Angiografía con Fluoresceína , Glaucoma de Ángulo Abierto/etiología , Humanos , Imagen por Resonancia Magnética , Persona de Mediana Edad , Ultrasonografía Doppler