We report a case of primary transitional cell carcinoma (TCC) ofa bladder diverticum along with a literature review. A 55-year-oldmale presented with painless gross hematuria. A histological diagnosisof TCC within a bladder diverticulum was made followingcystoscopical examination. Initially transurethral resection of bladdertumour with subsequent intravesical chemotherapy followed.As a result of recurrence and in view of bladder-sparing therapy, adistal partial cystectomy was performed. This report demonstratesthat conservative bladder-sparing treatment can be achieved andsubsequently followed by vigilant cystoscopy.