Cirrhotomimetic type hepatocellular carcinoma diagnosed after liver transplantation--eighteen months of follow-up: a case report.

Diffuse-type hepatocellular carcinoma (HCC) is a contraindication to liver transplantation (OLT). However, cirrhotomimetic HCC, which is a form of the diffuse type, is difficult to diagnose preoperatively, there are no published reports about its prognosis after OLT. We performed an OLT for a case of cirrhotomimetic HCC diagnosed postoperatively. This 41-years-old man was on the waiting list for OLT owing to hepatitis B virus-related liver cirrhosis and esophageal variceal bleeding. Three months before transplantation, newly developed small nodules were detected on computed tomography (CT); there were no interval changes on CT after 2 months. His serum value of alpha-fetoprotein (alpha-FP) was 327 ng/mL. The patient received a deceased donor liver transplantation and his postoperative course was uneventful. However, on pathologic findings, the explanted liver showed malignant cells in most cirrhotic nodules. So, the patient's pathologic diagnosis was cirrhotomimetic HCC. Triple immunosuppression was administered and steroid stopped at about 2 weeks after transplantation. Eighteen months after transplantation, alpha-FP was 1.5 ng/mL and there was no evidence of recurrence on follow-up CT. In conclusion, cirrhotomimetic HCC is rare and difficult to detect, preoperatively. Despite the short-term follow-up, we did not detect recurrence of HCC.