Brunn's nest

Brunn's nest

groups of proliferating epithelial cells in the submucosa of the urinary tract. They are a reaction to injury and may lead to the development of cystic ureteritis, pyelitis or cystitis.
References in periodicals archive ?
1,2,12) In our study, Brunn's nest is seen in 39% cases of cystitis and 9% cases of urothelial neoplasm.
The nested variant of transitional cell carcinoma: a neoplasm resembling proliferation of Brunn's nests.
This variant of urothelial bladder cancer often resembles clinical and histological features of inverted papilloma, von Brunn's nests (VBNs), cystitis cystica, nephrogenic metaplasia and sometimes usual TCC.
The prevalence and significance of Brunn's nests, cystitis cystica and squamous metaplasia in normal bladders.
1] Cystitis cystica occurs when von Brunn's nests grow into the lamina propria forming cysts, while cystitis glandularis describes the metaplastic change into goblet cells.