title: Isolated left pulmonary artery agenesis: a case report.
abstract: Unilateral pulmonary artery agenesis without any cardiovascular malformation is a rare anomaly. We present the imaging findings of a patient who was diagnosed as isolated left pulmonary artery agenesis. A 27-year-old female patient was admitted to our hospital due to dyspnea during exercise for five years. Chest X-ray revealed minimally small left pulmonary hilum and left lung. She was admitted to our clinic with the suspicion of pulmonary artery pathology. Absent perfusion of the left lung with normal ventilation was visualized on scintigraphy. MDCT angiography of pulmonary arteries showed absent left main pulmonary artery with systemic collaterals around left hemithorax. Pulmonary artery agenesis can be asymptomatic and isolated until adulthood. Both scintigraphy and CT angiography images of pulmonary artery agenesis of a patient are rare in the literature. Pulmonary ventilation-perfusion scintigraphy can be used not only for pulmonary embolism but also pathologies involving pulmonary artery and its branches.
  
  
  BACKGROUND
  None declared.
authors.affiliation: Fırat University Faculty of Medicine Department of Nuclear Medicine, Elazığ, Turkey.
authors.forename: Tansel Ansal
authors.initials: TA
authors.lastname: Balcı
authors.forename: Zehra Pınar
authors.initials: ZP
authors.lastname: Koç
authors.forename: Gamze
authors.initials: G
authors.lastname: Kırkıl
authors.forename: Ahmet Kürşad
authors.initials: AK
authors.lastname: Poyraz
keywords: Pulmonary artery; X-Ray computed tomography; agenesis; ventilation-perfusion scintigraphy