Pau-Yang Chang

Marjolin's ulcer : MR appearance

1All authors: Department of Medical Imaging, Buddhist Tzu Chi Medical Center, Hualien, No. 707, Section 3, Chung Yang Rd., Hualien, Taiwan 886. Address correspondence to P.-Y. Chang. alignant degeneration of untreated chronic wounds is a well-known complication. These rare, aggressive tumors that originate in chronically nonhealing wounds are called Marjolin’s ulcer [1]. A multidisciplinary approach is necessary in these patients. Here we report a case of Marjolin’s ulcer and the MRI findings.

Chronically Rejected Renal Allograft Replaced by a Huge Organized Hematoma Mimicking Malignancy

A 44-year-old man received a cadaveric renal allograft, however, the allograft failed after 1 year owing to septic complications. Five years after the complications, the patient noted an enlarged mass in the lower left abdominal area accompanied by discomfort. Abdominal computed tomography (CT) revealed the failed kidney transplant had been replaced by a mass with multiple calcifications. The tumor showed heterogenous-enhancement, as well as some vascular structures that were noted within the tumor. Aortogram demonstrated a huge hypovascular lesion in the lower left abdominal area with displacement of adjacent arteries. He received transplant nephrectomy and histological examination of the tumor showed a hematoma with organization and calcification accompanied by thromboemolism in the blood vessels. A hematoma is a common acute or chronic complication of kidney transplantation. It can be secondary to graft rupture or injury to the vascular pedicle. It is not well known that a hematoma can develop and slow expansion and total replacement can occur after graft failure. CT is limited in helping to determine the definitive pre-operative diagnosis.

Treatment of Pseudoaneurysm of the Ileocolic Artery with Microcoil Embolization in a Post-ileostomy Patient

Pseudoaneurysms arising from branches of the superior mesenteric artery (SMA) are very rare. It is important to recognize and treat a pseudoaneurysm because of the risk of bleeding and even death. Angiography is the standard means for detecting intestinal and mesenteric hemorrhage. Endovascular treatment is a prompt and effective method for control of gastrointestinal hemorrhage. Status post-ileostomy with pseudoaneurysm formation and active bleeding has not been reported in the literature. We present the first case of ileocolic artery pseudoaneurysm post-ileostomy successfully treated by transcatheter arterial microcoil embolization.