Micropapillary Urothelial Disease in a 61-Year-Old Man

A 61-year-old otherwise healthy man is referred for evaluation of hematuria. A computed tomography urogram reveals a tumor on left lateral wall of the bladder, and the patient undergoes an uneventful transurethral resection.

Pathology reveals high-grade urothelial carcinoma with micropapillary features invading the lamina propria (T1). Muscularis propria is present and is uninvolved.