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Infection

, Volume 28, Issue 3, pp 187–192 | Cite as

Extrahepatic Alveolar Echinococcosis without Liver Involvement: a Rare Manifestation

  • S. Reuter
  • H.M. Seitz
  • P. Kern
  • T. Junghanss
Case Report

Summary

Background: Alveolar echinococcosis (AE) primarily affects the liver and extrahepatic disease is considered the consequence of a secondary infection via metastatic spread from the hepatic focus.

Patients: Two patients with extrahepatic AE without liver involvement are presented. The first case is a patient with AE of the spleen and a small pulmonary calcification. In the second case exclusive affection of the spine was observed.

Discussion: Various pathogenetic explanations for hepatic omission appear plausible: a passage of oncospheres through hepatic sinuses without causing disease, a passage via lymphatic vessels or via portocaval anastomoses and the vascular passage in a retrograde fashion. Extrahepatic manifestation of AE without apparent liver involvement is rare. However, AE should be taken into account among other differential diagnoses even in cases of extrahepatic lesions without liver involvement.

Key WordsEchinococcus multilocularis Metastasis Primary infection Pathogenesis 

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Copyright information

© Urban & Vogel Medien und Medizin Verlagsgesellschaft 2000

Authors and Affiliations

  • S. Reuter
    • 1
  • H.M. Seitz
    • 2
  • P. Kern
    • 1
  • T. Junghanss
    • 3
  1. 1.Section of Infectious Diseases and Clinical Immunology, Dept. of Medicine III, University Hospital Ulm, Robert-Koch-Str. 8, D-89081 Ulm, Germany; Phone: +49-731-502-4420, Fax: +49-731-502-4422, e-mail: stefan.reuter@medizin.uni-ulm.de; peter.kern@medizin.uni-ulm.deDE
  2. 2.Institute for Medical Parasitology, Bonn University, Bonn, Germany; e-mail: seitz@parasit.meb.uni-bonn.deDE
  3. 3.Institute für Tropical Hygiene, Heidelberg University, Im Neuenheimer Feld 324, D-69120 Heidelberg, Germany; e-mail: thomas.junghanss@urz.uni-heidelberg.deDE

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