<unk>  at trigone<unk>  is the transformation of mucosal cells lining the urinary bladder. They undergo glandular metaplasia, a process in which irritated tissues take on a different form, in this case that of a gland. The main importance is in the findings of test results, in this case histopathology. They must distinguish a benign metaplastic change from the cancerous condition urothelial cell carcinoma. It is a very common finding in bladder biopsies and cystectomies, and most often found in the trigone area.<unk>  lesions are usually present as small microscopic foci; however, occasionally it can form raised intramucosal or polypoid lesions. The<unk>  lesions are within the submucosa.
Cystitis glandularis
Cystitis cystica
Genitourinary amoebiasis
Vaginitis emphysematosa
Pilonidal disease
Atrophic vaginitis
Vulvar myiasis
Autoimmune oophoritis