Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Neurilemmoma Mimicking a Multilocular Cystic Lesion of the Liver
Akihiro YoshidaKentaro YamaoMamoru TakenakaAtsushi NakaiShunsuke OmotoKen KamataKosuke MinagaTakeshi MiyataHajime ImaiIppei MatsumotoYoshihumi TakeyamaTakaaki ChikugoMasatoshi Kudo
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JOURNALS OPEN ACCESS

2018 Volume 57 Issue 23 Pages 3377-3380

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Abstract

Neurilemmomas are benign tumors arising from the sheaths of peripheral nerves. They appear rarely in the abdominal cavity. We herein report an 80-year-old man with a multilocular cystic neurilemmoma mimicking a liver lesion. Preoperative images showed a lesion in the porta hepatis. Although a preoperative diagnosis was difficult, surgery was undertaken because of the possibility of malignancy. Histologically, the tumor consisted of spindle-shaped cells with positivity for S-100 protein. The final diagnosis was a neurilemmoma. Porta hepatic neurilemmomas are rare. When we encounter a multilocular cystic lesion of the liver, neurilemmoma should be considered in the differential diagnosis.

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© 2018 by The Japanese Society of Internal Medicine
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