TY - JOUR T1 - Exertional hypoxia in a healthy adult: a pulmonary arteriovenous malformation JF - BMJ Case Reports JO - BMJ Case Reports DO - 10.1136/bcr-2019-231981 VL - 12 IS - 10 SP - e231981 AU - Kyle Keinath AU - Megan Vaughn AU - Nathan Cole AU - Shari Gentry Y1 - 2019/10/01 UR - http://casereports.bmj.com/content/12/10/e231981.abstract N2 - Pulmonary arteriovenous malformations (PAVMs) are a rare cause of pulmonary symptoms, including dyspnoea on exertion, hypoxemia and haemoptysis. PAVMs are an aetiology that is often overlooked by physicians when developing a differential diagnosis for pulmonary symptoms and unidentified lung masses. However, it is an important differential diagnosis to have as PAVMs can have serious sequelae including strokes, brain abscess and life-threatening bleeding. We present a case of an impressive PAVM presenting with chest pain, chronic cough, feelings of anxiety, mild resting hypoxemia and exertional hypoxemia. Of note, on previous chest X-ray, 8 years prior to presentation, an incidental mass was found during a shoulder repair presurgical workup but not further evaluated. ER -