title: Signet-ring cell carcinoma of urachus: a case report and review of literature.
abstract: Signet-ring cell carcinoma of the urachus and bladder is a rare lesion. Its histological picture is unique and similar to linitis plastica of stomach. The tumor arises through metaplasia of the totipotent transitional epithelium lining the urachus. It is a highly malignant tumor with propensity for local invasion and distant metastasis, and carries a uniformly poor prognosis. Herein we report one such rare case of urachal carcinoma who is free of disease for 2 years after surgical treatment.
authors.affiliation: Department of Urology, Sanjay Gandhi Post Graduate Institute of Medical Science, Lucknow, India.
authors.forename: R
authors.initials: R
authors.lastname: Ravi
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D014497:Urachus / Q000473:pathology* / Q000601:surgery; D001749:Urinary Bladder Neoplasms / Q000473:pathology* / Q000601:surgery