성인에서 발생한 중배엽성 신종 -1예 보고-
Mesoblastic Nephroma of Adulthood -A Case Report-
박재우, 정재훈, 이제혁, 남종희, 최찬, 이민철, 박창수, 정상우,
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박재우 ( Park Jae-Woo )
전남대학교 의과대학 병리학교실
정재훈 ( Chung Jae-Hun )
전남대학교 의과대학 병리학교실
이제혁 ( Lee Jae-Hyuk )
전남대학교 의과대학 병리학교실
남종희 ( Nam Jong-Hee )
전남대학교 의과대학 병리학교실
최찬 ( Choi Chan )
전남대학교 의과대학 병리학교실
이민철 ( Lee Min-Cheol )
전남대학교 의과대학 병리학교실
박창수 ( Park Chang-Soo )
전남대학교 의과대학 병리학교실
정상우 ( Juhng Sang-Woo )
전남대학교 의과대학 병리학교실
KMID : 0357920010350060551
Abstract
Mesoblastic nephroma is a benign neoplasm of the kidney, which is usually diagnosed during the first six months of life. Incidence in adults is exceedingly rare. We report herein a case of mesoblastic nephroma that occurred in the upper pole of the right kidney of a 39-year-old woman. It was a round mass measuring 3×3×2 ㎝ in dimension. Microscopically, it consisted of uniform spindle cells with foci of hyalinization and dystrophic calcification. Tubular structures were entrapped in the tumor. Upon immunohistochemical staining, the spindle cells were found to be positive for smooth muscle actin, desmin, and vimentin. The epithelial cells of the entrapped tubules were positive for cytokeratin. On electron microscopic examination, the spindle cells demonstrated smooth muscle differentiation identified by indented nuclei, microfilaments beneath the cell membrane, dense bodies, and basal lamina-like materials.
키워드
Nephroma;mesoblastic
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