Pancreatic lipoma with a solid nodule mimicking invasion from adjoining intraductal papillary mucinous neoplasm

Developmental Biology

Yoko Namiki³  Masako Ikemura²  Nobuhisa Akamatsu¹  Wataru Gonoi³  Kuni Ohtomo³  Eriko Maeda³ 

[1] Department of Hepatobiliary Surgery, Artificial Organ and Transplantation, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan$$;Department of Pathology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan$$;Department of Radiology, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan$$

关键词: Lipoma;    Pancreas;    Intraductal papillary mucinous neoplasm;    Liposarcoma;    Pancreatic tumor;    Hamartoma;   

DOI  :  10.1016/j.radcr.2016.02.017

学科分类：医学（综合）

来源: University of Washington * Department of Radiology

【 摘 要 】

A 74-year-old man was referred to our hospital for a mass in the pancreatic head found during screening chest computed tomography. Contrast computed tomography showed a 5-cm multicystic mass with an irregular border containing a solid component showing contrast enhancement. Caudal to this mass, a 5-cm solid mass of fat density with a nodular soft-tissue component was found. Cytology of the aspirated pancreatic fluid revealed malignant cells, and surgery was performed for suspected intraductal papillary mucinous carcinoma. Pathologic analysis of the resected specimen revealed a collision tumor of intraductal papillary mucinous neoplasm (IPMN) with high-grade dysplasia and pancreatic lipoma. The soft-tissue component within the lipoma was a nodule consisting of pancreatic tissue with inflammatory infiltration and hyalinization and was not associated with IPMN invasion.

【 授权许可】

Unknown