Fibroepithelial Polyp of the Lower Urinary Tract in Adults

Tsuzuki, Toyonori; Epstein, Jonathan I.

doi:10.1097/01.pas.0000155153.64360.1a

Cited by 63 publications

(57 citation statements)

References 13 publications

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“…7 In the one report of this in the literature, the pattern was likened to that of inverted papilloma but on the basis of the illustrations, in a limited sample, even carcinoma could be mimicked. We have indeed recently seen one case which we feel falls in that category in which the differential diagnosis with a nested carcinoma arose (Figure 4).…”

Section: Epithelial Proliferations In Fibroepithelial Polypsmentioning

confidence: 99%

Tumor-like lesions of the urinary bladder

2009

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Tumor-like lesions of the urinary bladder are reviewed emphasizing those that are most diagnostically challenging for the pathologist and may result in serious errors in patient care if misinterpreted. The first category considered, pseudocarcinomatous proliferations, represents an area of bladder pathology only recently appreciated as being particularly treacherous because of the extent to which irregular islands of benign epithelial cells may seemingly penetrate the lamina propria and cause confusion with carcinoma. Somewhat orderly proliferations of this type have been known for years, von Brunn's nests, and are rarely a challenge for the experienced, but proliferations of an irregular nature such as may be seen most often as a result of prior radiation therapy, but sometimes due to chemotherapy or even ischemia, represent a challenging interpretation. The clinical history may be very important in arriving at the correct diagnosis as is the appreciation that the morphology, although architecturally problematic, is different from that of any of the familiar patterns of invasive carcinoma. Florid epithelial proliferations in fibroepithelial polyps are also briefly noted. Within the category of glandular proliferations, emphasis is placed on the wide spectrum of morphology of nephrogenic adenoma including its pseudoinfiltrative pattern and occasional propensity for tiny tubules to be misconstrued as signet-ring cells. The spectrum of mü llerian glandular lesions including the relatively recently described mucinous variant, endocervicosis, is reviewed. The reactive papillary proliferation, papillary-polypoid cystitis, is then discussed. This entity has long been known but has recently been re-emphasized. Other non-neoplastic papillary lesions include florid papillary forms of nephrogenic adenoma. The past 25 years has seen a great expansion of knowledge concerning non-neoplastic spindle cell proliferations, including those related to a prior procedure, the postoperative spindle cell nodule and those without such a history, variously designated inflammatory pseudotumor, pseudosarcomatous myofibroblastic proliferation, or even other terms. The morphologic spectrum is explored and it is recommended that the two categories be retained.

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Section: Epithelial Proliferations In Fibroepithelial Polypsmentioning

confidence: 99%

Tumor-like lesions of the urinary bladder

2009

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“…Fibroepithelial polyps may be found in the lower urinary tract and female genital tract [19,20], and the fibrous stroma of these lesions may contain numerous blood vessels. In contrast to caruncle, however, fibroepithelial polyps are typically composed of fingerlike projections or a cloverleaf configuration of epithelium overlying a fibrous stroma, with infrequent inflammatory infiltrates.…”

Section: Discussionmentioning

confidence: 99%

Urethral caruncle: clinicopathologic features of 41 cases

et al. 2012

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“…[21 But the actual incidence must be higher than that reported, as many cases may be completely asymptomatic for many years. Ureteral fibroepithelial polyps are a non-epithelial tumor, [3] but other authors suggest that they are a tumor-like hyperplasia. In spite of the theory, which has little clinical relevance, it is well known that ureteral fibroepithelial polyps are benign tumors.…”

Section: Discussionmentioning

confidence: 99%