Preoperative Diagnosis of Idiopathic Myointimal Hyperplasia of Mesenteric Veins in a Post-Liver Transplant Patient.

Idiopathic myointimal hyperplasia of the mesenteric veins is a rare cause of ischemic colitis resulting from luminal obliteration of medium- to large-sized mesenteric veins, which may mimic inflammatory bowel disease and infectious colitis, typically diagnosed following surgical resection. Delays in diagnosis are common and often preceded by extended hospitalizations and failed medical therapies including antibiotics and anti-inflammatories. Here, we present a rare instance of the preoperative diagnosis of idiopathic myointimal hyperplasia of the mesenteric veins in a woman who had previously received a liver transplant.