title: Esophageal Granular Cell Tumor: A Case Report and Review of Literature.
abstract: Granular cell tumors (GCTs) are soft tissue neoplasms that originate from Schwann cells. They occur predominantly in the oral cavity, skin, and breast tissues. Gastrointestinal GCTs are very rare, accounting for only eight percent of all GCTs, most of which are located in the esophagus. Endoscopic ultrasound has been a breakthrough in diagnosing GCTs because it provides precise information on the depth of tumor invasion, thus narrowing the differential diagnosis of subepithelial lesions in the esophagus. However, the definitive diagnosis requires histological confirmation of the lesion. Here, we report a case of esophageal GCT that was identified incidentally and removed by endoscopic mucosal resection.
authors.affiliation: Internal Medicine, Staten Island University Hospital.
authors.forename: Nishitha
authors.initials: N
authors.lastname: Thumallapally
authors.affiliation: Department of Hematology/Oncology, Staten Island University Hospital.
authors.forename: Uroosa
authors.initials: U
authors.lastname: Ibrahim
authors.affiliation: Department of Gastroenterology, Staten Island University Hospital.
authors.forename: Mayurathan
authors.initials: M
authors.lastname: Kesavan
authors.affiliation: Department of Pathology, Staten Island University Hospital.
authors.forename: Qing
authors.initials: Q
authors.lastname: Chang
authors.affiliation: Department of Pathology, Staten Island University Hospital.
authors.forename: Lynne
authors.initials: L
authors.lastname: Opitz
authors.affiliation: Department of Hematology/Oncology, Staten Island University Hospital.
authors.forename: Meekoo
authors.initials: M
authors.lastname: Dhar
authors.affiliation: Department of Gastroenterology, Staten Island University Hospital.
authors.forename: Sherif
authors.initials: S
authors.lastname: Andrawes
keywords: endoscopy; esophagus; granular cell tumors; submucosal resection