The Winding Road to Dyspnea: A Case Report of an Unusual Presentation of Anomalous Left Coronary Artery from the Pulmonary Artery

<b>Background and Clinical Significance:</b> Anomalous left coronary artery from the pulmonary artery (ALCAPA) is a rare congenital anomaly. Such patients are unlikely to survive adulthood without a major surgical correction. <b>Case Presentation:</b> We report a 30-year-old female with a lifelong murmur who presented to the sports cardiology clinic with progressively reduced exercise tolerance. She was eventually diagnosed with ALCAPA and underwent successful Takeuchi repair. <b>Conclusions:</b> Surgical correction is strongly recommended upon diagnosis to mitigate the associated risks and improve the prognosis for affected individuals.