title: Pedunculated polypoid lymphangioma of the anal canal.
abstract: Lymphangioma is a rare benign lesion of the gastrointestinal tract, in which the large intestine is the least commonly involved site. To the authors' knowledge a lymphangioma of the anal canal has not been reported. Described herein is a case of pedunculated polypoid lymphangioma of the right lateral wall on the transitional zone of the anal canal measuring 1.7 x 1.3 x 1 cm in a 40-year-old woman. A pedicle does not exclude the endoscopic diagnosis of lymphangioma. Lymphangioma must be included in the differential diagnosis of polypoid lesions of the anal canal.
authors.affiliation: Department of Anatomical Pathology, Marqués de Valdecilla University Hospital, Medical Faculty, University of Cantabria, Santander, Spain. apavbj@humv.es
authors.forename: José Fernando
authors.initials: JF
authors.lastname: Val-Bernal
authors.forename: Marta
authors.initials: M
authors.lastname: Mayorga
authors.forename: Cristina
authors.initials: C
authors.lastname: Diego
authors.forename: María Carmen
authors.initials: MC
authors.lastname: González-Vela
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology; D000328:Adult; D001005:Anus Neoplasms / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008202:Lymphangioma / Q000473:pathology*; D012003:Rectal Fistula / Q000473:pathology