Leiomyosarcoma of the Kidney: A Clinicopathologic Study

Andrea T. Deyrup, Elizabeth Montgomery, Cyril Fisher

Research output: Contribution to journalReview articlepeer-review

31 Scopus citations


Leiomyosarcoma of kidney is a rare lesion for which limited data are available. Cases coded as leiomyosarcoma of the kidney from three institutions were reviewed. These cases comprised 3 men and 7 women, 40 to 75 years of age. Immunohistochemistry was performed where possible and clinical follow-up information was obtained. On immunohistochemical staining, 6 of 6 tumors expressed smooth muscle actin, desmin, calponin, and h-caldesmon, and epithelial membrane antigen was positive in 1 of 5. Tumors were negative for cytokeratin and S-100 protein. Follow-up information was available for 9 patients. Two patients had metastases at diagnosis, four developed metastases, and two had recurrent disease. Five of 9 died of disease. Two patients were alive with no evidence of disease after 19 and 60 months, and 2 patients were alive with disease after 48 months and 56 months. Comparing outcome with tumor grade, the one patient with grade 1 tumor was alive with no evidence of disease; of 5 patients with grade 2 tumor, 2 died of disease, 1 was alive with no evidence of disease, 1 was alive with disease, and 1 was alive with extensive disease; all 3 grade 3 patients died of disease. In summary, the majority of renal leiomyosarcomas are intermediate or high grade with correspondingly poor prognosis.

Original languageEnglish (US)
Pages (from-to)178-182
Number of pages5
JournalAmerican Journal of Surgical Pathology
Issue number2
StatePublished - Feb 2004


  • Kidney
  • Leiomyosarcoma
  • Sarcoma

ASJC Scopus subject areas

  • Anatomy
  • Surgery
  • Pathology and Forensic Medicine


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