title: ANAL LARGE CELL NEUROENDOCRINE CARCINOMA WITH TUBULOVILLOUS ADENOMA COEXISTENCE: A CASE REPORT.
abstract: Anal poorly differentiated neuroendocrine carcinomas are very rare aggressive neoplasm with a poor prognosis. This high-grade malignancy carcinoma can have small or non-small cells composition. This case report illustrates a large cell anal neuroendocrine carcinoma with tubulovillous component.
authors.forename: Iván E
authors.initials: IE
authors.lastname: Aponte Aponte
authors.forename: William
authors.initials: W
authors.lastname: Caceres
mesh_terms: D000236:Adenoma / Q000175:diagnosis / Q000628:therapy; D001005:Anus Neoplasms / Q000175:diagnosis / Q000628:therapy; D018278:Carcinoma, Neuroendocrine / Q000175:diagnosis / Q000628:therapy; D005260:Female; D006801:Humans; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000628:therapy