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Pulmonary venous varix

Pulmonary vein varix (PVV) also sometimes termed a pulmonary venous aneurysm refers to a localised aneurysmal dilatation of a pulmonary vein 9. As it involves a venous structure, the former term is usually considered more appropriate.

They are rare and may be congenital or acquired.

Clinical presentation

It is usually asymptomatic.

Pathology

While they can occur anywhere in the chest, they are thought to tyically occur at the confluences of the veins adjacent to the left atrium 3.

They are sometimes classified into three morphological types by some authors.

  • saccular type: considered commonest 9
  • tortuous type
  • confluent type
Associations

Radiographic features

Plain film: chest radiograph

Non specific and can present as a mass on a chest radiograph 1.

CTPA: contrast pulmonary angiography

Pulmonary angiography has been the mainstay of diagnosis 2. Allowing accurate delineation of arterial and venous anatomy.

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