We report on the clinicopathologic features of 115 cases of high-grade urothelial carcinoma
of the upper urinary tract with variant histology present in 39 (34%). Variant histology was …

A clinicopathologic study of 108 cases of high-grade urothelial carcinomas of the renal
pelvis is presented. Of the 108 tumors, 44 (40%) showed unusual morphologic features …

Nested subtype of urothelial carcinoma (NVUC) of the upper urinary tract is rare. While this
subtype has an aggressive behavior in the urinary bladder, little is known about this subtype …

It is well established that invasive urothelial carcinoma, involving the urinary bladder and
renal pelvis, has marked propensity for divergent differentiation. In recent years, several …

Context.—The spectrum of urothelial carcinoma is broad, and variant morphologies are
being reported continually. Many of these variants have been extensively documented and …

Bladder cancer is a common form of neoplasia which most often presents histologically as
urothelial (transitional cell) carcinoma. In this article we review recent publications dealing …

Urothelial carcinoma (UC) of the urinary bladder has a great propensity to undergo
divergent differentiation. The resulting subtypes are morphologically unique and have …

An increasing number of histologic variants of urothelial carcinoma have been recognized in
recent years. It is important for surgical pathologists to be aware of these morphological …

Bladder cancer can be classified histologically as urothelial or non-urothelial. Urothelial
cancer has a propensity for divergent differentiation, which has increasingly been …

Objectives To assess the detection rate of putative Lynch syndrome‐associated upper
urinary tract urothelial cancer among all upper urinary tract urothelial cancers and to …