title: Visceral neoplasia presenting at the umbilicus.
abstract: An umbilical mass as the presenting and only symptom of an underlying visceral carcinoma is an infrequent occurrence. The implications of such a finding are illustrated by four examples, with primary tumors in pancreas, colon, and ovary. Adenocarcinoma in the umbilicus represents a metastatic deposit until proved otherwise. Further diagnostic evaluation to localize the primary tumor should be based upon therapeutic implications. The need for abdominal exploration must be individualized.
mesh_terms: D000008:Abdominal Neoplasms / Q000175:diagnosis*; D000230:Adenocarcinoma / Q000175:diagnosis*; D000231:Adenocarcinoma, Papillary / Q000175:diagnosis; D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis / Q000175:diagnosis*; D010051:Ovarian Neoplasms / Q000175:diagnosis; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D014472:Umbilicus