title: Synchronous urothelial carcinoma of the bladder and urachal adenoma with subsequent malignant transformation.
abstract: Malignant transformation of urachal adenoma is exceedingly rare, with intestinal metaplasia as the most common contributing mechanism. It is recommended that a urachal adenoma be regarded as a pre-malignant condition and be subject to endoscopic surveillance. A local en block excision of the tumor mass with urachalectomy and umbilectomy results in possible long-term survival. The median survival after platinum-based chemotherapy is limited for patients with extravesical disease. Here we report a case of synchronous urothelial carcinoma of the bladder and urachal adenoma that transformed into adenocarcinoma.
authors: Department of Urology, Monash Medical Centre, Southern Health, Victoria, Australia.
authors: David
authors: D
authors: Pan
authors: Yeng Kwang
authors: YK
authors: Tay
authors: Scott
authors: S
authors: Donnellan