title: Extra-adrenal pheochromocytoma (paraganglioma) of the urinary bladder: a case report.
abstract: The case of a 49-year-old male patient with paraganglioma of the urinary bladder is presented here. The patient's only complaint was of gross hematuria: sustained hypertension and post-micturitional hypertension were not presented. Transurethral resection was performed to diagnose the bladder tumor. Pathological examination resulted in the diagnosis that the resected tissue was a paraganglioma. Computed tomography, magnetic resonance imaging and iodine-131-labeled metaiodbenzylguanidine scintigraphy revealed that the tumor was a primary paraganglioma in the urinary bladder. Plasma concentrations of the catecholamines were virtually within the normal limits. Hypertensive crisis was not revealed during the transurethral resection. The tumor was non-functional. Partial cystectomy was performed. The patient has remained disease-free for five months after surgery.
authors.affiliation: Department of Urology, Saku Central Hospital.
authors.forename: Tomonori
authors.initials: T
authors.lastname: Minagawa
authors.forename: Tomoya
authors.initials: T
authors.lastname: Sato
authors.forename: Masayuki
authors.initials: M
authors.lastname: Furuhata
authors.forename: Naoki
authors.initials: N
authors.lastname: Hirabayashi
authors.forename: Haruaki
authors.initials: H
authors.lastname: Kato
mesh_terms: D014408:Biomarkers, Tumor / Q000097:blood; D002395:Catecholamines / Q000097:blood; D015653:Cystectomy; D003952:Diagnostic Imaging; D018572:Disease-Free Survival; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010236:Paraganglioma, Extra-Adrenal / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
chemical_list: D014408:Biomarkers, Tumor; D002395:Catecholamines