Metastatic Small‐Cell Lung Carcinoma Infiltrating the Heart: A Rare Case Diagnosed Using Imaging Data

ABSTRACT Small‐cell lung carcinoma is a high‐grade aggressive disease that occurs most commonly in bronchial lung cancer, and metastasis to the heart is extremely rare. The diagnosis of metastatic small‐cell lung carcinoma infiltrating the heart remains challenging because of the variability of its clinical presentation. Hereinafter, we reported a case of a 41‐year‐old man who suffered from small‐cell lung cancer that invaded the pulmonary artery. The patient presented with chest tightness, dry cough, and deterioration in exercise tolerance and diagnosed at his imaging data, who had an uneventful recovery after surgical resection of the masses.