Unusual Hepatic Tumor with Features of Mesenchymal Hamartoma and Congenital Solitary Nonparasitic Cyst |
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Authors: | Georgia M. Azar N. Kutin Ellen Kahn |
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Affiliation: | (1) Department of Pathology, New York University Medical Center, New York, NY, USA, US;(2) Department of Surgery, North Shore University Hospital—New York University School of Medicine, Manhasset, NY, USA, US;(3) Department of Pathology, North Shore University Hospital—New York University School of Medicine, 300 Community Drive, Manhasset, NY 11030, USA, US |
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Abstract: | We report a hepatic tumor in an adolescent that does not fit into any of the described categories of liver tumors. The patient presented with hepatomegaly, abdominal pain, and normal liver function test; the tumor was cystic in imaging studies. The resected specimen, result of a partial hepatectomy, measured 21 cm and was multicystic with solid areas. Microscopically, the cysts were lined by a mucous-producing or intestinal-type epithelium, associated with smooth muscle and small mucous-producing glands. The solid component contained fibrous and adipose tissue, smooth muscle and thick-walled vessels. Aneuploidy was demonstrated by flow cytometry. We interpreted the tumor as having features of a mesenchymal hamartoma and congenital solitary nonparasitic cyst. It is conceivable that the lesions originated with small peribiliary glands with dilatation and intestinal metaplasia. |
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