Superficial bladder cancer: an update on etiology, molecular development, classification, and natural history.


Superficial "non-muscle-invasive" bladder tumors represent a heterogeneous group of cancers, including those that are (1) papillary in nature and limited to the mucosa, (2) high grade and flat and confined to the epithelium, and (3) invasive into the submucosa, or lamina propria. The goal of treatment is 2-fold: (1) to reduce tumor recurrence and the… (More)


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