Histopathological changes after microwave coagulation therapy for patients with hepatocellular carcinoma: review of 15 explanted livers.

Objectives: Microwave coagulation therapy (MCT) is a well established local ablation technique for hepatocellular carcinoma (HCC). However, pathological changes in liver tissue after this therapy have not been well described. We examined the histological changes of HCC after MCT observed in explanted livers in relation to CT findings.

Arterial splenic calcifications in children with AIDS: two case reports.

Splenic calcifications in AIDS patients are usually round and result from infections with opportunistic pathogens such as Pneumocystis carinii, Mycobacterium avium-intracellulare and Cytomegalovirus. We describe here a remarkable echopattern of the spleen in two pediatric patients, resulting from linear, branching calcifications in the splenic parenchymal arteries. We believe this echopattern represents the ultrasonographic manifestation of an HIV-associated vasculopathy.