The patient is a 12-year-old girl who has had a chest wall depression since early childhood. Initially, the deformity was mild and asymptomatic, so no treatment was pursued. However, as she grew older, the depression progressively worsened, resulting in noticeable symptoms such as palpitations and shortness of breath during physical activity.

The anterior chest wall shows a severe asymmetric depression, causing marked compression of the heart, which is displaced toward the right thoracic cavity. The patient also presents with scoliosis. She is diagnosed with malignant pectus excavatum.

Three incisions, each approximately 3 cm in length, were made at the midline and on both sides of the chest wall. The chest wall first underwent pre-shaping, followed by placement of two bars to perform the Wung procedure, correcting the depression deformity. Subsequently, the Wenlin procedure was performed to further optimize the chest wall contour and achieve a more ideal appearance (a minor localized protrusion occurred during correction due to the overall rigidity and stability of the thoracic structure). The surgery proceeded smoothly and was completed within one hour. Postoperatively, the patient’s chest wall deformity was fully corrected, and normal appearance was restored.