Pulmonary Vein Varicosity

Epidemiology

  • Very rare (<100 reported cases)

Physiology

  • Congenital or acquired pulmonary venous tortuosity/dilatation near entrance to LA

Diagnosis

  • CXR/Chest CT Pattern: round or oval slightly lobulated, well-defined nodule (1-3 cm)/ may be multiple
    • Location: medial third of lung (lingular vein on left or medial basal vein on right), close to LA
    • Calcification: none
    • Cavitation: none
    • Change in size with Valsalva/ Mueller maneuvers
  • Pulmonary angiogram: late filling and slow drainage (as compared to pulmonary AVM)