Highlights a rare case of intravascular papillary endothelial hyperplasia in the bladder, emphasizing the importance of correct histological diagnosis to avoid unnecessary radical procedures.
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May prompt histological vigilance for IPEH in post-radiotherapy bladder lesions to avoid overtreatment; leaves open radiation association.
Intravascular papillary endothelial hyperplasia (IPEH), also known as Masson's tumor, is a benign unusual vascular lesion thought to arise from an organizing thrombus. Histologically, IPEH is characterized by papillary fronds lined by proliferating endothelium that may mimic angiosarcoma, and therefore the correct diagnosis may prevent unnecessary radical procedures. Involvement of the bladder is extremely rare, with only three cases reported in the literature. We report a case of IPEH arising in the bladder of a patient with history of prostate cancer treated with radiotherapy.
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Jazaerly et al. (2011) studied this question.
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