Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report

<p>Abstract</p> <p>Background</p> <p>Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms of uncertain malignant potential, which have in common the co-expression of muscle and melanocytic immunohistochemical markers.</p> <p>Case pre...

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Main Authors: Wehrli Bret M, Bella Anthony J, Parfitt Jeremy R, Izawa Jonathan I
Format: Article
Language:English
Published: BMC 2006-08-01
Series:BMC Urology
Online Access:http://www.biomedcentral.com/1471-2490/6/20
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author Wehrli Bret M
Bella Anthony J
Parfitt Jeremy R
Izawa Jonathan I
author_facet Wehrli Bret M
Bella Anthony J
Parfitt Jeremy R
Izawa Jonathan I
author_sort Wehrli Bret M
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms of uncertain malignant potential, which have in common the co-expression of muscle and melanocytic immunohistochemical markers.</p> <p>Case presentation</p> <p>A 48-year-old man presented with dysuria, passage of urinary sediment and lower abdominal discomfort. A three centimeter mass was identified by cystoscopy in the posterior midline of the bladder. Computerized tomography suggested an enterovesical fistula. The patient underwent laparotomy, partial cystectomy and partial small bowel resection. Pathological examination revealed PEComa of the bladder. The patient underwent adjuvant interferon-α immunotherapy. Subsequent follow-up procedures, including cystoscopy and imaging, have not revealed evidence of recurrence. The patient is clinically free of disease 48 months after surgery.</p> <p>Conclusion</p> <p>This case represents the second documented PEComa of bladder and demonstrates that adjuvant therapies, including anti-angiogenic and immunotherapy, may be considered for patients with locally advanced or metastatic genitourinary PEComa.</p>
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spelling doaj.art-6215cf6eecad4cf1996d927878c030782022-12-22T00:48:26ZengBMCBMC Urology1471-24902006-08-01612010.1186/1471-2490-6-20Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case reportWehrli Bret MBella Anthony JParfitt Jeremy RIzawa Jonathan I<p>Abstract</p> <p>Background</p> <p>Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal neoplasms of uncertain malignant potential, which have in common the co-expression of muscle and melanocytic immunohistochemical markers.</p> <p>Case presentation</p> <p>A 48-year-old man presented with dysuria, passage of urinary sediment and lower abdominal discomfort. A three centimeter mass was identified by cystoscopy in the posterior midline of the bladder. Computerized tomography suggested an enterovesical fistula. The patient underwent laparotomy, partial cystectomy and partial small bowel resection. Pathological examination revealed PEComa of the bladder. The patient underwent adjuvant interferon-α immunotherapy. Subsequent follow-up procedures, including cystoscopy and imaging, have not revealed evidence of recurrence. The patient is clinically free of disease 48 months after surgery.</p> <p>Conclusion</p> <p>This case represents the second documented PEComa of bladder and demonstrates that adjuvant therapies, including anti-angiogenic and immunotherapy, may be considered for patients with locally advanced or metastatic genitourinary PEComa.</p>http://www.biomedcentral.com/1471-2490/6/20
spellingShingle Wehrli Bret M
Bella Anthony J
Parfitt Jeremy R
Izawa Jonathan I
Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
BMC Urology
title Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
title_full Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
title_fullStr Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
title_full_unstemmed Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
title_short Primary PEComa of the bladder treated with primary excision and adjuvant interferon-alpha immunotherapy: a case report
title_sort primary pecoma of the bladder treated with primary excision and adjuvant interferon alpha immunotherapy a case report
url http://www.biomedcentral.com/1471-2490/6/20
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