PMID: 9179974May 1, 1997Paper

Pseudoneoplastic lesions of the urinary bladder and urethra: a selective review with emphasis on recent information

Seminars in Diagnostic Pathology
R H Young

Abstract

Selected tumor-like lesions of the urinary bladder and urethra, particularly those that have been the subject of recent attention in the literature, are reviewed. Within the category of epithelial abnormalities, it has recently been appreciated that cystitis glandularis of the intestinal type is occasionally associated with prominent mucin extravasation into the stroma, a finding that should not lead to the misdiagnosis of adenocarcinoma. Additionally, the problems that nephrogenic adenoma may cause have been the subject of recent study, and a detailed microscopic analysis of this lesion has shed light on the relative frequency of its common, and uncommon, features. Within the category of tumor-like lesions of the bladder, the inflammatory pseudotumor has been the subject of much interest as have müllerian lesions. It has recently been appreciated that endosalpingiosis is rarely seen at this site, usually in association with endocervicosis or endometriosis, leading to the suggested usage of the designation "müllerianosis." Selected other tumor-like lesions of the urinary bladder and urethra are also reviewed, including the problems nephrogenic adenoma may cause when it involves the prostatic urethra in men or a urethral diverti...Continue Reading

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