Pleomorphic undifferentiated sarcoma of the kidney: A case report and literature review

Primary sarcomas of the kidney are a rare entity and it counts for 1-3% of malignant neoplasms. The most frequent histologic types are leiomyosarcoma and liposarcoma. The primary pleomorphic undifferentiated sarcoma of kidney is a rare variant and it has a poor prognosis, with around 60 cases described in the literature up to date. We present a 52-year-old female case with high renal tumor, treated surgically whose histological diagnosis confirmed by immunohistochemistry was undifferentiated pleomorphic sarcoma, giant cell variant. (C) 2015 Sociedad Mexicana de Oncologia. Published by Masson Doyma Mexico S. A. This is anopen access article under the CC BY-NC-ND license