Case Report
Orkimi oiouani*,
Abstract
Nested variant of urothelial carcinoma (NVUC) is a rare histological subtype of urothelial carcinoma. It has abenign appearance with an aspect characterized by confluent small nest or urothelial’s cell tubules. However, itshows aggressive clinical course despite the benign-looking histology so it must be differentiated from the benignproliferative lesions. Herein reported are four cases of NVUC. The data was collected from the medical records in theDepartment of Urology, at the University Hospital Center of Rabat Morocco during the period from January 2014 toDecember 2017.