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Introducción: El hemangiopericitoma es un raro tumor mesenquimal (vascularizado y potencialmente maligno) derivado de los pericitos, que puede aparecer en cualquier parte del cuerpo; sin embargo, en el cuello se describen casos aislados. La resección quirúrgica completa constituye la piedra angular del tratamiento. Objetivo: Presentar un caso de un hemangiopericitoma en el cuello, como un caso inusual, con potencial maligno desconocido, diagnóstico y tratamiento oportuno. Presentación de caso: Paciente de sexo masculino, de 39 años de edad, sin antecedentes de enfermedad conocidos, con una masa perceptible a nivel V del cuello derecho. Estudios de imagen muestran un tumor vascularizado de aproximadamente 6 x 7 x 6 cm, entre los músculos escalenos, que fue originado en la arteria cervical profunda. Se confirmó mediante biopsia incisional el hemangiopericitoma, el cual fue tratado mediante resección tumoral completa y radioterapia adyuvante. Actualmente el paciente no tiene actividad tumoral después de su tratamiento inicial. Conclusiones: El hemangiopericitoma en el cuello es raro, el diagnóstico constituye un reto clínico e histológico, ya que, al ser poco común, su potencial maligno resulta desconocido. Aquellos tumores que tienen bajo grado de malignidad pueden ser controlados, de acuerdo a su localización y tamaño, mediante resección completa; mientras que los tumores de alto grado pueden recurrir y dar origen a metástasis. Nuestro paciente tuvo características histopatológicas con invasión capsular, lo que trajo como consecuencia un incremento del riesgo de recurrencia local. Por ese motivo, se decidió aplicar tratamiento adyuvante con radioterapia. El paciente se mantiene sin recurrencia tumoral local y a distancia después de 9 años de vigilancia médica(AU)

Introduction: Hemangiopericytoma is a rare mesenchymal tumor (vascularized and potentially malignant) derived from pericytes. It can occur anywhere in the body; however, isolated cases are described in the neck. Complete surgical resection is the cornerstone of treatment. Objective: To present a case of hemangiopericytoma in the neck, as an unusual case, with unknown malignant potential, as well as its timely diagnosis and treatment. Case presentation: A 39-year-old male patient, with no known history of disease, had a noticeable mass at the V level of the right neck. Imaging studies showed a vascularized tumor of approximately 6 x 7 x 6 cm, between the scalene muscles, which originated in the deep cervical artery. Hemangiopericytoma was confirmed by incisional biopsy, as well as treated by complete tumor resection and with adjuvant radiotherapy. Currently, the patient has no tumor activity after his initial treatment. Conclusions: Hemangiopericytoma in the neck is rare. Its diagnosis is a clinical and histologic challenge because, being uncommon, its malignant potential is unknown. Those tumors with low-grade malignancy can be controlled, according to their location and size, by complete resection; while high-grade tumors may recur and give rise to metastases. Our patient had histopathologic features with capsular invasion, which resulted in an increased risk of local recurrence. For this reason, adjuvant treatment with radiotherapy was decided to be applied. The patient remains without local or distant tumor recurrence after 9 years of medical surveillance(AU)

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RESUMEN: El absceso esplénico es una patología poco frecuente; su incidencia es baja (0,2 a 0,7%)1,2; por tanto, es importante individualizar el tratamiento, buscar su causa y ofrecer al paciente el mejor manejo. Hasta hace algunos años, un absceso esplénico se lo trataba siempre mediante esplenectomía; sin embargo, actualmente, debido a la importante función inmunitaria del bazo, su extirpación quirúrgica es la última alternativa. Inicialmente, se debe intentar tratamiento médico con antibióticos de amplio espectro; luego probablemente se requiera pensar en el drenaje guiado por tomografía y, finalmente, la tercera opción es la esplenectomía. En este artículo presentamos el caso de un paciente con un absceso esplénico grande (aproximadamente 550 ml) del polo superior, secundario a un linfoma esplénico abscedado que fistulizó hacia el fondo gástrico. A propósito de este paciente, revisamos la literatura médica y realizamos algunas recomendaciones para el manejo de esta patología.

ABSTRACT: Splenic abscess is a rare condition with a low incidence (0,2 to 0,7%). It is important to individualize treatment, seek its source and offer the patient the best management. Until a few years ago a splenic abscess was always treated with splenectomy. Nowadays, due to the important immune function of the spleen surgical removal is the last alternative. Initially medical treatment with broad spectrum antibiotics should be attempted. The next step is usually tomography-guided drainage. The last step used if other methods fail is splenectomy. In this article we present a case of a patient with a large splenic abscess (550 ml approximately) from the upper pole secondary to B cell lymphoma that fistulized towards the gastric fundus. We reviewed the current medical literature regarding this pathology and the current treatment algorithm.Keywords: splenic abscess, B cell lymphoma, gastrosplenic fistula.

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Resumen: Presentamos el caso de una joven de 16 años con síntomas digestivos, principalmente disfagia y dolor retroesternal. Luego de ser diagnosticada de acalasia (sintomatología compatible), que se confirma por manometría de alta resolución, se indica tratamiento quirúrgico (miotomía de Heller + funduplicatura de Toupet), con cirugía mínimamente invasiva (laparoscopia), La evolución fue muy favorable: desaparecieron los síntomas digestivos y fue notable la pronta recuperación. Se revisa la literatura de las distintas opciones terapéuticas y sus principales indicaciones. Palabras claves: acalasia, manometría de alta resolución, miotomía de Heller, funduplicatura de Toupet

Abstract: We report the case of 15 year old female with digestive symptoms, mainly dysphagia and chest pain. After being diagnosed with possible achalasia (compatible clinical), is confirmed by high-resolution manometry, surgical treatment is indicated (myotomy heller + fundoplication toupet), with minimally invasive surgery (laparoscopy), with a very favorable evolution, disappearing digestive symptoms and produced a remarkable recovery in a short time. We do a literature review of therapeutic options available and their main indications. Key words: achalasia, high-resolution manometry, Heller myotomy, Toupet fundoplication

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BACKGROUND: Leiomyoma is the most common benign esophageal tumor that originates in the muscular layer, with the most common site located in the distal third of the esophagus. Its growth causes symptoms due to partial obstruction of the esophageal lumen, leading to the diagnosis and subsequent treatment. Today, due to modern minimally invasive surgical techniques, complete removal of these tumors can be accomplished with minimal morbidity and excellent results. CASE REPORT: We report the case of a 49-year-old female with a history of dysphagia, epigastric pain, and halitosis. She was diagnosed with a benign tumor originating from the muscular layer of the distal esophagus. Multiple biopsies had previously been taken, without histological confirmation. The patient underwent surgery where complete tumor enucleation was done laparoscopically. CONCLUSIONS: Preoperative diagnosis of these tumors should be based on clinical history and studies such as esophagoscopy and endoscopic ultrasound. Laparoscopic enucleation is the treatment of choice for leiomyomas of the esophagogastric junction. Biopsy specimens should be avoided because histology is not always possible. Furthermore, they are related to rupture of the esophageal mucosa during surgical treatment. After enucleation in selected patients, anti-reflux procedure should be carried out in order to protect the area of surgical resection and prevent complications from weakening the lower esophageal sphincter, as well as to resolve reflux symptoms.

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