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Aetiology

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Causes of bilateral hilar lymphadenopathy include

  • tuberculosis
  • sarcoidosis
  • lymphoma - almost never shows the striking symmetry of the BHL
  • carcinoma
  • fungi
  • hypogammaglobulinaemia
  • berrylliosis

The commonest cause of bilateral hilar lymphadenopathy in the UK in adults is sarcoidosis. Sarcoidosis may also cause unilateral hilar lymphadenopathy but tuberculosis and carcinoma become more important possibilities.

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