title: Interferon alpha-2B and liver resection to treat multifocal hepatic epithelioid hemangioendothelioma: a relevant approach to avoid liver transplantation.
abstract: BACKGROUND
  Hepatic epithelioid hemangioendothelioma is a rare malignant tumor of vascular origin with frequent multifocal appearance. Liver resection may cause tumor spread. Liver transplantation has been indicated for unresectable nodules. We hypothesized that adjuvant interferon treatment is effective to prevent metastasis after liver resection. We report a case of multifocal hepatic epithelioid hemangioendothelioma successfully treated with interferon pulse therapy and bilobar hepatic resection.
  
  
  METHODS
  CT scan and magnetic resonance imaging diagnosed three nodules in the liver (segments IV, VI and VII). Histopathology and specific immunostaining of a percutaneous nodule biopsy confirmed the diagnosis of hepatic epithelioid hemangioendothelioma. The treatment protocol included daily interferon alpha 2b 9 weeks before and 1 week after resection of liver segments IV, VI and VII.
  
  
  RESULTS
  The postoperative outcome was complicated by a self-limited biliary fistula. The patient remains tumor free at 3 years after liver resection and currently enjoys excellent health.
  
  
  CONCLUSIONS
  Interferon pulse therapy and hepatic resection was a good option to treat multifocal bilobar hepatic epithelioid hemangioendothelioma; it may prevent metastasis dissemination.
authors.affiliation: Transplantation and Liver Surgery Unit, Faculty of Medicine, University of São Paulo (FMUSP), São Paulo, Brazil. fgalvao@usp.br
authors.forename: F H F
authors.initials: FH
authors.lastname: Galvão
authors.forename: A
authors.initials: A
authors.lastname: Bakonyi-Neto
authors.forename: M A C
authors.initials: MA
authors.lastname: Machado
authors.forename: A Q
authors.initials: AQ
authors.lastname: Farias
authors.forename: E S
authors.initials: ES
authors.lastname: Mello
authors.forename: M E
authors.initials: ME
authors.lastname: Diz
authors.forename: M C C
authors.initials: MC
authors.lastname: Machado
mesh_terms: D000328:Adult; D000970:Antineoplastic Agents / Q000627:therapeutic use; D003131:Combined Modality Therapy; D005260:Female; D018323:Hemangioendothelioma, Epithelioid / Q000188:drug therapy / Q000473:pathology / Q000601:surgery*; D006498:Hepatectomy; D006801:Humans; D000077190:Interferon alpha-2; D016898:Interferon-alpha / Q000627:therapeutic use*; D008113:Liver Neoplasms / Q000188:drug therapy / Q000473:pathology / Q000601:surgery*; D011994:Recombinant Proteins; D013997:Time Factors; D016896:Treatment Outcome
chemical_list: D000970:Antineoplastic Agents; D000077190:Interferon alpha-2; D016898:Interferon-alpha; D011994:Recombinant Proteins