Retroperitoneal Glomus Tumor—A Case Report—

Abstract

A 45-year-old man underwent computed tomography for evaluation of liver dysfunction and was diagnosed with a heterogeneously enhanced tumor (28 mm in diameter) located on the dorsal aspect of the pancreatic body. It was difficult to determine whether the tumor originated from the pancreas or the retroperitoneum. Endoscopic ultrasound-guided fine-needle aspiration biopsy suggested a glomus tumor. We performed laparotomy for tumor extirpation, and the lesion was histopathologically diagnosed as a glomus tumor originating from the retroperitoneum. Glomus tumors originate from glomus cells and commonly occur in the nail bed. A few studies have reported glomus tumors originating in the stomach and intestine ; however, retroperitoneal glomus tumors are rare.