Tumor esofágico de células granulares: descripción de un tumor benigno poco frecuente / Granular cell tumor of the esophagus: description of an infrequent benign tumor

ResumenEl tumor de células granulares (TCG) es un tumor infrecuente descrito en 1926 por Abrikossoff. El 6% de estos tumores se encuentran en el tracto gastrointestinal siendo el esófago el lugar de mayor incidencia. El comportamiento suele ser benigno por lo que la mayoría de los TCG esofágicos son asintomáticos descubriéndose de forma casual en la realización de una gastroscopia. En el examen endoscópico aparece como una lesión polipoide o sésil, de aspecto submucoso, bien delimitada, recubierta de mucosa normal de color amarillento y con un aumento de su consistencia. La ecoendoscopia ha mejorado notablemente la evaluación de estas lesiones siendo actualmente la mucosectomía endoscópica el tratamiento de elección con una baja tasa de complicaciones. El estudio histológico de la pieza de resección evidencia características propias como la positividad para la proteína S-100. Presentamos 2 nuevos casos de TCG en esófago recientemente diagnosticados y se comentan los aspectos más relevantes de esta infrecuente enfermedad (AU)

Granular cell tumors (GCT) are infrequent tumors first described by Abrikossoff in 1926. Gastrointestinal involvement occurs in about 6% of GCT, the esophagus being the most frequent location. These tumors are usually benign and asymptomatic and are usually found incidentally when an upper gastrointestinal endoscopy is carried out for another reason, showing an isolated polyp or sessile submucosal nodule, covered by intact yellowish mucosa and with firm consistency. Endoscopic ultrasonography has significantly improved the diagnosis of these lesions. Nowadays endoscopic mucosectomy is the treatment of choice of esophageal GCT with a low frequency of complications. Histologic analysis of the surgical specimen shows specific characteristics such as positivity for S-100 protein. We present two new cases of esophageal GCT that were diagnosed recently and discuss the most relevant features of this infrequent disease (AU)

[Granular cell tumor of the esophagus: description of an infrequent benign tumor]. / Tumor esofágico de células granulares: descripción de un tumor benigno poco frecuente.

Granular cell tumors (GCT) are infrequent tumors first described by Abrikossoff in 1926. Gastrointestinal involvement occurs in about 6% of GCT, the esophagus being the most frequent location. These tumors are usually benign and asymptomatic and are usually found incidentally when an upper gastrointestinal endoscopy is carried out for another reason, showing an isolated polyp or sessile submucosal nodule, covered by intact yellowish mucosa and with firm consistency. Endoscopic ultrasonography has significantly improved the diagnosis of these lesions. Nowadays endoscopic mucosectomy is the treatment of choice of esophageal GCT with a low frequency of complications. Histologic analysis of the surgical specimen shows specific characteristics such as positivity for S-100 protein. We present two new cases of esophageal GCT that were diagnosed recently and discuss the most relevant features of this infrequent disease.