<prompt> Which of the following is associated with Von Brunns nest?Normal urotheliumTransitional cell carcinomaSquamous cell carcinomaAdenocarcinoma  <response>: Nests of von Brunn:Proliferative invaginations of urothelium retaining continuity with the surface are termed von Brunns buds. Well-defined solid nests of urothelial cells within the superficial lamina propria are termed von Brunns nests. These two occur in most bladders, most commonly in trigone. They regarded as pa of the normal histology of bladder mucosa. Ref: Urologic pathology By Robe O. Petersen, Isabell A. Sesterhenn, Charles J. Davis, 2009, Page 137, 184. 