J Korean Soc Coloproctol.
2011 Oct;27(5):270-274. 10.3393/jksc.2011.27.5.270.
Recurrent Renal Leiomyosarcoma Mimicking a Colonic Submucosal Tumor: A Case Report
- Affiliations
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- 1Department of Internal Medicine, Chungnam National University Hospital, Daejeon, Korea. mhs1357@cnuh.co.kr
- 2Department of General Surgery, Chungnam National University Hospital, Daejeon, Korea.
- 3Department of Pathology, Chungnam National University Hospital, Daejeon, Korea.
- KMID: 2198741
- DOI: http://doi.org/10.3393/jksc.2011.27.5.270
Abstract
- A primary leiomyosarcoma of the kidney is a rare, but highly aggressive, neoplasm, accounting for only 0.1% of all invasive renal tumors. Local or systemic recurrence is common, but a leiomyosarcoma is difficult to diagnose preoperatively. We recently encountered an interesting case of an unusual recurrence of a renal leiomyosarcoma. A 57-year-old woman visited our hospital complaining of lower abdominal pain. Four years previously, she had undergone a left nephrectomy. She had a primary leiomyosarcoma of the kidney that had been misdiagnosed as a renal cell carcinoma. Colonoscopy revealed the presence of a lesion similar to a submucosal tumor in the descending colon. Postoperative pathologic examination confirmed that the mass was a recurrent leiomyosarcoma. We report this unusual case and present a review of the literature.
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