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Prog Urol. 2010 Apr;20(4):307-10. doi: 10.1016/j.purol.2009.05.007. Epub 2009 Jun 21.

[Pseudosarcomatous myofibroblastic proliferation of the bladder].

[Article in French]

Author information

1
Service d'anatomie et de cytologie pathologiques, hôpital Fattouma-Bourguiba, rue du 1(er) juin 1955, 5000 Monastir, Tunisie. njiml@yahoo.fr

Abstract

Myofibroblastic proliferations of the bladder in adults are unusual lesions with a benign course. These proliferations, whether spontaneous or secondary to instrumentation, have identical morphology and behaviour. Histologically, similar lesions have been reported in the literature using different names, such as inflammatory pseudotumour, pseudosarcomatous fibromyxoid tumour, nodular fasciitis, postoperative spindle cell nodule... Recently, some authors proposed that these lesions are similar enough to be considered the same entity, designated as "pseudosarcomatous myofibroblastic proliferation" and insisted on the necessity to distinguish them from the inflammatory myofibroblastic tumour of the childhood. The latter, recently recognized as tumour, has a malignant potential and is capable of giving metastases. We describe the case of a 17-year-old man who presented a vesical mass. The histopathological study concluded to a pseudosarcomatous myofibroblastic proliferation. We discuss, through a literature review, the relationship of this lesion with inflammatory myofibroblastic tumour and its main differential diagnoses.

PMID:
20380994
DOI:
10.1016/j.purol.2009.05.007
[Indexed for MEDLINE]
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