title: Undifferentiated Pleomorphic Sarcoma Presenting as Abdominal Pain with a Pulsatile Mass.
abstract: Malignant fibrous histiocytoma (MFH) is a rare tumor that mostly involves adults aged 50 to 70. The most common anatomic location is the lower extremities. MFH of the retroperitoneum usually manifests late in its course and may be initially mistaken with other more common diagnosis. Here, the authors describe a 60-year-old man that was brought to the emergency department with a chief complaint of periumbilical abdominal pain. Our patient presented with symptoms consistent with a symptomatic aortic aneurysm, but a mass was encountered during surgery. In such circumstances the diagnosis of malignant sarcoma must be kept in mind and attempts at full resection with tumor-free margins are necessary.
authors: Department of General and Vascular Surgery, Shohada-e-Tajrish Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Arash
authors: 0000-0002-2421-3815
authors: A
authors: Moradi
authors: Department of General and Vascular Surgery, Shohada-e-Tajrish Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Abolfazl
authors: A
authors: Afsharfard
authors: Department of Pediatric Surgery, Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
authors: Khashayar
authors: 0000-0003-0421-1334
authors: K
authors: Atqiaee