We report a case of solitary fibrous tumor of the kidney in an 85-year-old woman with a 2-month history of abdominal pain. Solitary fibrous tumor is a mesenchymal tumor that has been described in both pleural-based and extrathoracic locations. Solitary fibrous tumor of the kidney is a rare entity with fewer than 15 cases reported in the literature, to our knowledge, and is similar to solitary fibrous tumor in other locations in morphologic and immunologic features and in biologic behavior. Solitary fibrous tumor is a variably cellular spindle cell neoplasm that can take on numerous patterns. Most cells are immunoreactive for CD34, CD99, and Bcl-2; these are helpful markers in differentiating these lesions from other benign and malignant spindle cell neo-plasms. Solitary fibrous tumor has a favorable prognosis, but a relatively low percentage of tumors will recur and/or metastasize. Complete surgical resection with long-term follow-up and surveillance is warranted.
|Original language||English (US)|
|Number of pages||3|
|Journal||Archives of Pathology and Laboratory Medicine|
|State||Published - Jan 2006|
ASJC Scopus subject areas
- Pathology and Forensic Medicine
- Medical Laboratory Technology