Thoracoscopic refers to a minimally invasive surgical procedure performed in the chest cavity using a thoracoscope, a thin tube with a camera and light. This technique allows doctors to visualize and operate on the lungs, pleura, and other structures within the thoracic cavity without making large incisions. The procedure is often used for diagnostic purposes, such as obtaining tissue samples, or for therapeutic interventions like removing tumors or treating lung diseases. It is associated with shorter recovery times and less postoperative pain compared to traditional open surgery.