Urachal adenocarcinoma: big dimensions without involvement of the bladder wall.

INTRODUCTION Urachal adenocarcinoma is a very rare type of all the bladder neoplasms, typically arises in the remnant of the allantoic stalk. Its annual incidence is estimated to be 1 in 5 million individuals and the majority of patients are in the 5th and 6th decades of life with presenting symptoms of mucusuria, hematuria, irritative voiding symptoms, and palpable suprapubic mass. Urachal adenocarcinomas typically involves the wall of the bladder and may exhibit ulceration of the overlying urothelium. We here report a case with a huge dimensions of urachal adenocarcinoma without involvement of the bladder wall.