title: Solitary schwannoma of the cecum: case report and review of the literature.
abstract: A 78-year-old woman presented with an abdominal mass diagnosed by ultrasound and computed tomography. The patient underwent a laparotomy, during which a retroperitoneal tumor adherent to the cecum wall was identified. Microscopically, it showed spindle-cell proliferation in whorls, with low mitotic count (2 per 50 high-power fields) and was strongly positive for S-100 protein and vimentin. The final diagnosis was benign schwannoma of the cecum and no further treatment was required. Large intestine schwannomas are extremely rare tumors and only a few cases of schwannoma of the cecum have been reported to date.
authors: Department of Gastrointestinal Oncology, Institute of Cancer of Ceara, State University of Ceara, Fortaleza, Brazil.
authors: José Wilson Benevides
authors: JW
authors: de Mesquita Neto
authors: Renato Mazon
authors: RM
authors: Lima Verde Leal
authors: Eurivaldo Valente
authors: EV
authors: de Brito
authors: Diego Fonseca
authors: DF
authors: Cordeiro
authors: Marcelo Leite Vieira
authors: ML
authors: Costa
keywords: Cecum; Gastrointestinal tract; S-100 protein; Schwannoma