Response to loco-regional therapy predicts outcomes after liver transplantation for combined hepatocellular-cholangiocarcinoma

Samuel O. Antwi, Yacob Y. Habboush, Lori A. Chase, David D. Lee, Tushar Patel

Research output: Contribution to journalArticlepeer-review

Abstract

Introduction and aim. Combined hepatocellular-cholangiocarcinoma (HCC-CCA) is a rare liver malignancy distinct from either hepatocellular carcinoma (HCC) or cholangiocarcinoma. Liver transplantation (LT) is not recommended for HCC-CCA because of suboptimal outcomes. Non-invasive diagnosis of HCC-CCA is extremely challenging; thus, some HCC-CCAs are presumed as HCC on imaging and listed for LT with the correct diagnosis ultimately made on explant pathology. We compared HCC-CCA with HCC to determine the utility of response to pre-transplant loco-regional therapy (LRT) in predicting outcomes for HCC-CCA after LT as a potential means of identifying appropriate HCC-CCA patients for LT. Material and methods. Retrospective review of 19 patients with pathologically confirmed HCC-CCA were individually matched to 38 HCC patients (1:2) based on age, sex, and Milan criteria at listing was performed. The modified response evaluation criteria in solid tumors was used to categorize patients as responders or non-responders to pre-transplant LRT based on imaging performed before and after LRT. Overall survival (OS) and recurrence-free survival (RFS) were examined. Results. OS at 3 years post-transplant was 74% for HCC-CCA and 87% for HCC. RFS at 3 years was 74% for HCC-CCA, and 87% for HCC. Among responders to LRT, the 3-year OS was 92% for HCC-CCA and 88% for HCC; among non-responders, 3-year OS was 43% for HCC-CCA and 83% for HCC. Higher 3-year OS was observed among HCC-CCA responders (77%) compared with HCC-CCA non-responders (23%). Conclusions. OS was similarly high among responders to pre-transplant LRT irrespective of tumor type. Radiologic response to LRT could potentially be used to select appropriate HCC-CCA patients for LT if the findings are validated in independent studies.

Original languageEnglish (US)
Pages (from-to)969-979
Number of pages11
JournalAnnals of hepatology
Volume17
Issue number6
DOIs
StatePublished - Nov 1 2018

Keywords

  • Combined hepatocellular and cholangiocarcinoma
  • HCC
  • LRT
  • Loco-regional therapy
  • Overall survival
  • Recurrence-free survival

ASJC Scopus subject areas

  • Hepatology

Fingerprint Dive into the research topics of 'Response to loco-regional therapy predicts outcomes after liver transplantation for combined hepatocellular-cholangiocarcinoma'. Together they form a unique fingerprint.

Cite this