A middle-aged male was stuck by a fish spike after eating fish last year, without special treatment. During surgery, the left lower lung mass was found to be densely adherent to the pericardium, descending aorta, and esophagus, and the left lower lung was resected intraoperatively. Tip: If symptoms do not resolve after being stuck by a fish spike, prompt medical attention should be sought. This patient was considered to have a fish spike stuck in the esophageal diaphragm, which later penetrated the esophagus and pierced into the lung to form a chronic abscess.