Regressive liver adenomatosis following androgenic progestin therapy withdrawal: a case report with a 10-year follow-up and a molecular analysis.

Abstract:

OBJECTIVE:The relationship between sex hormones and hepatocellular adenoma development is well established. On the contrary, their contribution to liver adenomatosis (LA) development is still a debatable issue. Recently, inactivating mutations of hepatocyte nuclear factor-1alpha (HNF-1alpha) transcription factor gene or activating mutations of beta-catenin have been demonstrated in some liver adenomas, and a possible link between HNF-1alpha gene mutations and oral contraceptives has been suggested. Only two cases of regressive LA after hormone withdrawal therapy have been described so far but without any information concerning the molecular characteristics of the tumours. CASE:We report the case of a 48-year-old woman with LA, who had been taking an androgenic progestin therapy (lynestrenol) for 10 years. A major regression in the number and size of the lesions was observed 6 months after complete withdrawal of this therapy. METHODS:Hepatocellular adenomas were studied by immunohistochemistry for oestrogen, progesterone and androgen receptors (ER, PR and AR respectively), and for beta-catenin. Direct sequencing of the HNF-1alpha gene was also performed. RESULTS:For the first time, we demonstrate significant immunostaining of AR in the hepatocellular adenomas. This staining was negative in the partially regressive adenoma. Immunostainings for ER and PR were negative. HNF-1alpha and the beta-catenin pathways were not involved in tumour pathogenesis. CONCLUSIONS:Our case suggests a role of androgenic progestin therapy in some cases of LA. Hormone therapy withdrawal may induce a significant regression in lesions.

journal_name

Eur J Endocrinol

authors

Svrcek M,Jeannot E,Arrivé L,Poupon R,Fromont G,Fléjou JF,Zucman-Rossi J,Bouchard P,Wendum D

doi

10.1530/EJE-07-0020

subject

Has Abstract

pub_date

2007-06-01 00:00:00

pages

617-21

issue

6

eissn

0804-4643

issn

1479-683X

pii

156/6/617

journal_volume

156

pub_type

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