Invasive urothelial tumor formed dominantly of sheets and irregular groups of malignant transitional epithelial cells of moderare degree of anaplasia and mitosis. These tumor groups are seen invading the underlying lamina propria and very close to the muscularis propria without actual penetration. Areas of necrosis are seen.
Urinary bladder mass.
Soft tissue fragments collectively measured 4x3.5x1 cm, totally embedded.