Serum levels of gamma-glutamyl transpeptidase in relation to HCC human biology and prognosis.

BACKGROUND AND AIM: Hepatocellular carcinoma (HCC) biomarkers are limited, as even the best studied, alpha-fetoprotein (AFP), is elevated in no more than 50% of HCC patients. The aim was to evaluate several serum liver function tests in relation to survival and tumor characteristics in a large cohort of Turkish HCC patients. METHODS: We retrospectively examined the serum levels of gamma glutamyl transpeptidase (GGT) in relation to patient survival. RESULTS: Kaplan-Meier analysis showed that only GGT and albumin amongst liver function tests, were significantly associated with survival. Survival worsened with increase in GGT levels semi-quantitatively. Increase in GGT levels was also found to significantly correlate with an increase in maximum tumor diameter from 4.5 to 7 cm, a 20-fold increase in serum alpha-fetoprotein level, an increase in tumor multifocality from 20 to 54% of patients, and a doubling in percent of patients with portal vein thrombosis (PVT) from 20 to 40%. Serum GGT levels also showed significant survival differences for patients with low AFP levels. A doublet combination of serum GGT with albumin levels was associated with higher hazard ratios in a Cox regression analysis, as compared with single parameter GGT. The combination parameter pair was also prognostically useful in the low-AFP patient subcohort and was associated with significant differences in patient tumor characteristics. CONCLUSIONS: Serum GGT levels and especially combination serum GGT plus albumin levels, were significantly associated both with HCC patient survival and tumor aggressiveness characteristics, regardless of AFP levels in a large Turkish cohort. This might be especially useful since the majority of HCC patients do not have elevated levels of AFP.

Liver transplantation is possible in some patients with liver metastasis of colon cancer.

Liver metastases from colorectal cancer are an absolute contraindication for liver transplantation. Aggressive therapy with liver resection and local chemotherapy in selected patients may be able to provide long-term cure. Given the risks of tumor recurrence, whether patients with post chemotherapy complications leading to liver failure should be offered transplantation is a challenging question in an era of limited organ availability. Herein we have presented 2 cases of liver transplantation performed in patients with colorectal cancer metastases treated with liver resection followed by hepatic artery infusion chemotherapy leading to development of sclerosing cholangitis and eventual liver failure. This report demonstrates that liver transplantation may be an option in selected patients with colorectal cancer liver metastases that have been well treated.

Fulminant hepatic failure due to secondary amyloidosis.

Systemic amyloidosis frequently involves liver, however, clinically apparent liver disease is rare and, if observed, is usually mild. Rarely, primary amyloidosis may present with evidence of portal hypertension or hepatic failure. Although secondary amyloidosis may involve the liver and rarely causes liver pathologies such as cholestatic hepatitis and portal hypertension, to our knowledge, hepatic failure due to secondary amyloidosis has been reported once before. Herein, we presented a woman with subacute fulminant hepatic failure who had no known history of a chronic disease other than episodes of urinary tract infection, and secondary amyloidosis was diagnosed with post-mortem liver biopsy.