Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Simulators of Urothelial Carcinoma

Version 1 : Received: 17 December 2020 / Approved: 18 December 2020 / Online: 18 December 2020 (07:32:45 CET)

A peer-reviewed article of this Preprint also exists.

Manini, C.; Angulo, J.C.; López, J.I. Mimickers of Urothelial Carcinoma and the Approach to Differential Diagnosis. Clin. Pract. 2021, 11, 110-123. Manini, C.; Angulo, J.C.; López, J.I. Mimickers of Urothelial Carcinoma and the Approach to Differential Diagnosis. Clin. Pract. 2021, 11, 110-123.

Journal reference: Clin. Pract. 2021, 11, 17
DOI: 10.3390/clinpract11010017

Abstract

A broad spectrum of lesions, including hyperplastic, metaplastic, inflammatory, infectious, and reactive, may mimic cancer all along the urinary tract. This narrative collects most of them from a clinical and pathologic perspective offering urologists and general pathologists their most salient definitory features. Together with classical, well-known, entities such as urothelial papillomas (conventional and inverted), nephrogenic adenoma, polypoid cystitis, fibroepithelial polyp, prostatic-type polyp, verumontanum cyst, xanthogranulomatous inflammation, reactive changes secondary to BCG instillations, schistosomiasis, keratinizing desquamative squamous metaplasia, post-radiation changes, vaginal-type metaplasia, endocervicosis/endometriosis (müllerianosis), malakoplakia, florid von Brunn nest proliferation, cystitis/ureteritis cystica and glandularis, among others, still other cellular proliferations with concerning histological features and poorly understood etiopathogenesis like IgG4-related disease, PEComa, and pseudosarcomatous myofibroblastic proliferations (post-operative spindle cell nodule, inflammatory myofibroblastic tumor), are reviewed. Some of these diagnoses are problematic for urologists, other for pathologists, and still others for both. Interestingly, the right identification of their definitory features will allow their correct diagnoses thus avoiding overtreatment. The literature selected for this review also focuses on the immunohistochemical and/or molecular data useful to delineate prognosis.

Keywords

urinary tract; pseudotumor; diagnosis; symptoms; histology

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