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Pulmonary amoebiasis presenting as superior vena cava syndrome
  1. A Lichtenstein1,
  2. A T Kondo1,
  3. G S Visvesvara3,
  4. A Fernandez4,
  5. E F Paiva1,
  6. T Mauad2,
  7. M Dolhnikoff2,
  8. M A Martins1
  1. 1Department of Medicine, São Paulo University Medical School, São Paulo, Brazil
  2. 2Department of Pathology, São Paulo University Medical School, São Paulo, Brazil
  3. 3Division of Parasitic Diseases, National Centers for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
  4. 4Department of Thoracic Surgery, São Paulo University Medical School, São Paulo, Brazil
  1. Correspondence to:
    Dr T Mauad
    Department of Pathology, Faculdade de Medicina da Universidade de Sao Paulo, Av. Dr. Arnaldo 455 1st floor, 01246-903 São Paulo SP, Brazil;


Pulmonary amoebiasis without liver involvement occurs sporadically as a result of haematogenous spread from a primary site, the colon. The case history is presented of a patient who developed superior vena cava syndrome due to a pulmonary amoebic abscess without liver involvement. He was initially suspected of having a neoplasm but a combination of tests including histological examination of the H&E stained excised tissue, immunofluorescence using anti-Entamoeba histolytica antibodies, and serology confirmed the diagnosis of amoebiasis. To our knowledge this is the first description of pulmonary amoebiasis presenting as superior vena cava syndrome.

  • lung abscess
  • Entamoeba histolytica
  • superior vena cava syndrome

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