Diffuse pulmonary haemorrhage

Diffuse pulmonary haemorrhage (DPH) is a subtype of pulmonary haemorrhage where bleeding into the lung is diffuse. If the bleeding is into the alveolar spaces this can be further subclassified as diffuse alveolar haemorrhage (DAH).

While the exact presentation can vary is has been classically associated with dyspnoea in the setting of haemoptysis +/- an iron deficiency anaemia 7.

While chest radiographic appearances are nonspecific, there may be evidence of bilateral air-space consolidation with relative apical sparing 7.

May show areas of widespread ground glass opacification +/- crazy paving pattern 8 +/- areas of consolidation. In the subacute phase HRCT may show fine diffuse nodular densities 9-10. In later stage there may also be evidence of interlobular septal thickening due to intralymphatic accumulation of haemosiderin.

For radiographic (plain radiograph and CT) in the acute phase of DPH appearances consider:

For HRCT appearances in the subacute phase (i.e. fine nodules) consider:

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Article information

rID: 17117
System: Chest
Section: Gamuts
Synonyms or Alternate Spellings:
  • Diffuse pulmonary hemorrhage
  • Diffuse lung haemorrhage
  • Diffuse lung hemorrhage
  • Diffuse pulmonary haemorrhage (DPH)
  • Diffuse intrapulmonary haemorrhage
  • DPH

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