Chronic pulmonary embolism

Chronic pulmonary emboli are mainly a consequence of incomplete resolution of pulmonary thromboembolism.

CTPA
Nuclear medicine: V/Q scan

Some publications suggest that V/Q scanning may be more sensitive than CTPA in detecting chronic pulmonary embolic burden 6.

Increased vascular resistance due to obstruction of the vascular bed leads to pulmonary hypertension.

Differential considerations on a CTPA include 5:

  • perivascular pulmonary oedema 
  • artefacts/interpretational errors
    • motion: breathing artefact
    • flow related artefact
    • streak artefact
    • misinterpretation
      • due to incorrect window settings
      • misinterpretation of veins as arteries
  • pulmonary arterial catheter 5
  • intrinsic intraluminal tumour
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Article Information

rID: 25000
Systems: Chest, Vascular
Section: Pathology
Tag: cases
Synonyms or Alternate Spellings:
  • Chronic pulmonary emboli
  • Chronic pulmonary thromboemboli
  • Chronic pulmonary thromboembolism
  • Chronic pulmonary emboli (CPE)
  • Chronic pulmonary thromboembolism (CPTE)
  • CPTE

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Cases and Figures

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    Bilateral pulmona...
    Case 1: acute on chronic pulmonary emboli
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    Case 2
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    Case 3
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    Case 4
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