Skipping BCG for T1a Urinary Bladder Tumor.

Bladder cancer is the most common malignancy involving theurinary system and the ninth most common malignancy worldwide .In Egypt, the urinary bladder cancer accounted for about 31% of the total incidence of cancers that subsequently decreased to 12% in the recent years .Transitional cell (Urothelial) carcinoma is the most common type of bladder cancer, about more than 90% all bladder cancers . Other pathological types are less common such as squamous cell carcinoma (observed in about 5% of bladder cancers), adenocarcinoma (observed in approximately 1% of bladder cancers) and small cell carcinoma. Urothelial carcinomas are divided clinically into superficial tumors and muscle invasive tumors. Grossly they may appear in various forms, most commonly papillary, but may also appear as a nodule or an irregular solid growth .Accurate prediction of progression is essential need in T1 bladder cancer (BCa) because the stakes are high for this disease. About one-third of patients never recur after initial treatment, one-third have cancer that recurs as non-muscle invasive BCa (NMIBC), and one-third progress to muscle-invasive BCa with significantly worse clinical outcome . Recurrence and progression rates for pT1 tumors are highly variable Accurate prediction of progression is essential need in T1 bladder cancer management. There is difficulty in predication of T1 progression due to intrinsic difficulty in assessing the presence and extent of invasion. Patient prognosis and management have been affected by the Identification of the muscularis mucosa (MM) by Dixon and Gosling in 1983 . Elderly patients with bladder cancer frequently have comorbid conditions that make conservative management preferable for early invasive urothelial carcinomas. Several studies have explored the utility of evaluating the spatial relationship of invasive tumor to the Muscularis mucosa for sub classification of pT1 urothelial carcinomas . Muscularis mucosa consists of thin and wavy fascicles of smo