International Clinical and Medical Case Reports Journal (ISSN: 2832-5788) | Volume 4, Issue 4 | Case Report | Open Access DOI

Uncommon Cause of Hypoxaemia: A Case Report of Pulmonary Arteriovenous Fistula

Ponaswath K*

Ponaswath K1*, Sukanya N2 , Kiruthika J3 , Kalpana Ramanathan4 , Chandrasekar S5

1Post Graduate of General Medicine, Department of General Medicine, Government Stanley Medical College and Hospital, Chennai, India

2Senior Assistant Professor of General Medicine, Department of General Medicine, Government Stanley Medical College and Hospital, Chennai, India

3Assistant Professor of General Medicine, Department of General Medicine, Government Stanley Medical College and Hospital, Chennai, India

4Professor, Department of General Medicine, Government Stanley Medical College and Hospital, Chennai, India

5Professor and Head, Department of General Medicine, Government Stanley Medical College and Hospital, Chennai, India

*Correspondence to: Ponaswath K 

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Abstract

Pulmonary arteriovenous malformation (PAVM) is a rare vascular anomaly characterised by an abnormal right-to-left shunt, leading to impaired gas exchange and disruption of pulmonary filtration. Although uncommon in the general population, PAVMs are a crucial differential diagnosis in patients presenting with hypoxaemia, pulmonary nodules, or haemoptysis. Here, we report a rare case of a 38-year-old female who presented with complaints of headache and was subsequently diagnosed with a pulmonary arteriovenous fistula.

Keywords:

Osler-Weber-Rendu syndrome; Central cyanosis; Pandigital clubbing; Paradoxical embolism; Pulmonary arteriovenous fistula

Citation:

Ponaswath K, Sukanya N , Kiruthika J , Kalpana Ramanathan, Chandrasekar S. Uncommon Cause of Hypoxaemia: A Case Report of Pulmonary Arteriovenous Fistula. Int Clinc Med Case Rep Jour. 2025;4(4):1-7.