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Rare case of an adenomatoid tumor cyst of liver

JOURNAL OF SURGICAL CASE REPORTS(2022)

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摘要
Adenomatoid tumors are incidentally found, rare tumors that are usually benign. They usually originate from mesothelial cells and have been reported to occur in the genital tract, though occasionally occur in extra-genital locations. A 33-year-old African-American female was found to have a large multiloculated cystic lesion in segments IV and V of the liver. The patient underwent a laparoscopic central hepatectomy and the tumor was resected en bloc. On pathologic analysis, the specimen showed multiple cysts of variable sizes lined by a single layer of low cuboidal cells. Immunohistochemistry revealed cells staining positive for WT-1 and calretinin, indicative of a tumor of mesothelial origin. Adenomatoid tumors are rarely, if ever found to occur in the liver. Their malignant potential and biology in the liver is unknown, however given their benign behavior in other organs, resection was considered curative.
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