Abstract
A 35-year-old woman presented with epigastralgia and back pain. She was found to have a right suprarenal tumor, 6 cm in diameter, that occupied the dorsum of the inferior vena cava based on ultrasongraphy, CT, and MRI images, and accumulation of fluorodeoxyglucose in the tumor was seen on positron emission tomography ; the pattern of the uptake mimicked that of a malignant tumor. Under the diagnosis of a non-functioning right adrenal malignant tumor, a laparotomy was done, and the tumor along with the right adrenal gland was removed. On histopathology, a retroperitoneal benign schwannoma was diagnosed. The patient's postoperative course was good, and she has not had a recurrence during 11 months of follow up. This case and the available literature on retroperitoneal schwannomas are discussed in this paper.
