Essential thrombocythemia presenting as localized hemorrhage and mucosal necrosis of transverse colon: A case report

Figure 2 Imaging, intraoperative and histopathological findings. A: Contrast-enhanced abdominal computed tomography revealed portal hypertension, splenomegaly, tortuous venous clusters at the splenic hilum, and hemorrhage and edema of the transverse colon (orange arrows); B: Computed tomography revealed marked thickening and narrowing of the transverse colon compared with adjacent bowel loops (orange arrow); C: Intraoperative examination revealed a dark red transverse colon, with a subserosal hematoma-like change and clear demarcation from the non-congested colon (orange arrows); D: Histopathological analysis (hematoxylin and eosin stain) showed marked vascular congestion with hemorrhage, few intraluminal thrombi, focal mucosal necrosis and shedding, marked submucosal edema with vascular proliferation, thick-walled vessels, and focal angioma-like hyperplasia (orange arrows).