title: Urinary bladder metastasis--an unusual presentation of distant spread from a primary pyriform sinus cancer: a case report.
abstract: Hypopharyngeal cancers have a high propensity to distant metastasis. However, metastasis to the urinary bladder as an initial presentation of distant spread has not been reported in literature. We present a report of a patient with a treated and controlled pyriform sinus cancer who presented with complaints of dysuria, 8 months after completion of treatment. Cystoscopy revealed a bladder mass and biopsy confirmed it to be a metastatic squamous cell carcinoma. On further investigation, the patient was found to have disseminated disease for which chemotherapy was instituted. A relevant review of literature is also presented.
authors.affiliation: Department of Head and Neck Surgery, Tata Memorial Hospital, Parel, Mumbai, India.
authors.forename: Rohan R
authors.initials: RR
authors.lastname: Walvekar
authors.forename: Gouri H
authors.initials: GH
authors.lastname: Pantvaidya
authors.forename: Sangeeta B
authors.initials: SB
authors.lastname: Desai
authors.forename: Devendra A
authors.initials: DA
authors.lastname: Chaukar
authors.forename: Anil K
authors.initials: AK
authors.lastname: D'Cruz
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000556:secondary; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000628:therapy; D003558:Cystoscopy; D017809:Fatal Outcome; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000473:pathology* / Q000628:therapy; D008297:Male; D037981:Neck Dissection; D018714:Radiotherapy, Adjuvant; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis / Q000556:secondary*