Amiodarone lung

Case contributed by Dr David Pryde


73 year old female presenting with SOB.

Patient Data

Age: 73
Gender: Female

Patchy widespread lung infiltrates and previous cardiac surgery.


Multiple patchy bilateral areas of lung consolidation tending towards the periphery with an occasional groundless area consistent with organising pneumonia.

Dense liver also - not shown.

Biopsy proven.

Case Discussion

Organising pneumonia (OP) is considered a non-specific repair process in lungs in response to various kinds of lung insults:

  • cryptogenic organising pneumonia (COP) when the cause is not known
  • secondary organising pneumonia when the cause is known
    • infection, inflammatory bowel disease, drugs (as in the above case), collagen vascular disease, organ transplantation and radiation direct to the chest

The histological hallmark of OP is intra-alveolar granulation tissue plugs (Masson bodies) which extend into bronchiolar lumina. The presence of these plugs is a prerequisite for restoration of tissue integrity.

Not to be confused with Bronchiolitis Obliterans Organising Pneumonia (BOOP), which is a disease specifically of small airways

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Case information

rID: 38994
Case created: 15th Aug 2015
Last edited: 2nd Apr 2018
System: Chest
Inclusion in quiz mode: Included

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