Solitary Fibrous Tumor of the Kidney
김선아, 황정은, 노재윤, 조경자, 송채린, 김미정,
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김선아 ( Kim Sun-A )
울산대학교 의과대학 서울아산병원 병리과
황정은 ( Hwang Jeong-Eun )
울산대학교 의과대학 서울아산병원 병리과
노재윤 ( Ro Jae Y. )
울산대학교 의과대학 서울아산병원 병리과
조경자 ( Cho Kyung-Ja )
울산대학교 의과대학 서울아산병원 병리학교실
송채린 ( Song Cheryn )
울산대학교 의과대학 서울아산병원 비뇨기과학교실
김미정 ( Kim Mi-Jung )
울산대학교 의과대학 서울아산병원 병리학교실
KMID : 0357920100440040420
Abstract
Solitary fibrous tumor (SFT) is a benign mesenchymal neoplasm usually occurring in the pleura. Kidney is one of the rarest sites for SFT. We report here on two cases of renal SFT found in 30-year-old and 33-year-old men with review of the literatures. Both cases manifested as well-enhanced solid masses in kidney and radical nephrectomies were done. The tumors consisted of bland-looking spindle cells arranged in short, ill-defined fascicles and storiform pattern with characteristic hemangiopericytoma-like blood vessels. The tumor cells were strongly positive for CD34 and CD99, focally positive for bcl-2, and negative for cytokeratin and human melanoma black-45 on immunohistochemical stainings. Possibility of SFT should be considered in the differential diagnosis of a renal mass which consists of benign-looking spindle cells and hemangiopericytomatous blood vessels. Immunohistochemical staining for CD34 is essential to confirm the renal solitary fibrous tumor.
키워드
Solitary fibrous tumor; Kidney; Immunohistochemistry
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