Tall cell variant of papillary thyroid carcinoma: current evidence on clinicopathologic features and molecular biology.

Tall cell variant (TCV) of papillary thyroid carcinoma (PTC) has been recognized for the past few decades as an entity showing aggressive biological behavior; however, there is considerable controversy regarding the definition, clinical and pathological features of TCV because of its rarity and difficult diagnosis. No clinical features can accurately diagnose TCV. Thus, the results of histocytology, immunohistochemistry and molecular genetics tests have important clinical implications for diagnosis.

Outcomes of liver transplantation for nonalcoholic steatohepatitis: a systematic review and meta-analysis.

Background & Aims: Little is known about outcomes of patients with nonalcoholic steatohepatitis (NASH) who receive liver transplants. We performed a systematic review and meta-analysis to estimate post-transplant outcomes, survival times, and mortality from cardiovascular complications, sepsis, and graft failure in these patients.

Methods: We searched PubMed and EMBASE, and Cochrane library and Web of Science databases for studies published through September 1, 2012 of patients who underwent liver transplantation for NASH or nonalcoholic fatty liver disease (NAFLD).