title: Incidental detection of pancreatic hemangioma mimicking a metastatic tumor of renal cell carcinoma.
abstract: Adult pancreatic hemangioma is a rare disease. We presented a case of a woman with pancreatic tail mass mimicking a distant metastasis from the kidney. A 68-year-old woman was found with a left kidney mass on medical checkup. Computed tomography scan showed a 4.3 cm-sized mass in the left kidney, suggesting renal cell carcinoma (RCC), and a strongly enhancing tiny nodule in the pancreatic tail. We could not rule the possibility of RCC metastasis, hence, surgical resection of the pancreatic mass simultaneously with radical nephrectomy for RCC was conducted. Gross pathologic examination revealed hemangioma. Immunohistochemistry revealed that the tumor was positive for CD34, CD31 and factor VIII-related antigen. There were no significant postoperative events, and the patient was discharged on postoperative day 7 without any complications. Treatment strategies for pancreatic hemangioma have not been established. To our knowledge, this was the first case report of asymptomatic pancreatic hemangioma. In previous literature, treatment differed on a case-by-case basis, ranging from observation to surgical resection. The most important factor in deciding whether to perform surgery is possibly risk-benefit effectiveness; however, tumor location, patient symptoms, and other factors are also important.
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Hyun
authors.initials: SH
authors.lastname: Kim
authors.affiliation: Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Ji-Ye
authors.initials: JY
authors.lastname: Kim
authors.affiliation: Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jin Young
authors.initials: JY
authors.lastname: Choi
authors.affiliation: Department of Urology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Young Deuk
authors.initials: YD
authors.lastname: Choi
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Kyung Sik
authors.initials: KS
authors.lastname: Kim
keywords: Adult hemangioma; CD34; Hemangioma; Incidental discovery; Pancreas