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Respir Med Case Rep. 2017 Sep 14;22:238-242. doi: 10.1016/j.rmcr.2017.09.004. eCollection 2017.

Unilateral absent pulmonary artery in an adult - A diagnostic and therapeutic challenge.

Respiratory medicine case reports

Faheem Seedat, Ismail S Kalla, Charles Feldman

Affiliations

  1. Department of Internal Medicine, Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.
  2. Division of Pulmonology, Department of Internal Medicine, Charlotte Maxeke Johannesburg Academic Hospital and Faculty of Health Sciences, University of Witwatersrand, Johannesburg, South Africa.

PMID: 28951831 PMCID: PMC5604951 DOI: 10.1016/j.rmcr.2017.09.004

Abstract

Unilateral absent pulmonary artery (UAPA) is a congenital abnormality rarely diagnosed in adults. UAPA has a myriad of clinical presentations and pulmonary hypertension is present in a quarter of all cases. Isolated UAPA commonly affects the right pulmonary artery and occurs as a result of abnormal development of the sixth aortic arch segment. Due to its rarity, it remains a diagnostic and therapeutic challenge. We describe a case of UAPA in an adult presenting with severe pulmonary hypertension. We describe the appropriate diagnostic approach to a patient with pulmonary hypertension and illustrate the importance of a detailed evaluation to determine the underlying aetiology, particularly in rare causes. Furthermore, we review the clinical presentation, diagnosis and management challenges of UAPA in adults.

Keywords: CTEPH, Chronic thromboembolic pulmonary hypertension; CTPA, Computed tomography pulmonary angiogram; Diagnosis; ECG, Electrocardiogram; MRI, Magnetic resonance imaging; Pulmonary hypertension; SVT, Supraventricular tachycardia; Therapy; UAPA, Unilateral absent pulmonary artery; Unilateral absent pulmonary artery

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