large nested variant of urothelial carcinoma
Monday 12 September 2011
Large nested pattern of urothelial carcinoma is distinguished from an inverted growth pattern of non-invasive urothelial carcinoma and from von Brunn nests by either MP invasion, irregularly infiltrating nests, or a stromal reaction.
Despite the bland cytologic features of these neoplasms, they have well-documented metastatic potential.
Large nested variant of urothelial carcinoma: 23 cases mimicking von brunn nests and inverted growth pattern of noninvasive papillary urothelial carcinoma. Cox R, Epstein JI. Am J Surg Pathol. 2011 Sep;35(9):1337-42. PMID: 21836490