AN OTHERWISE healthy 16-year-old high school student had a 6-month history of decreased exercise tolerance. Significant findings on physical examination included a depressed sternum with posterior chest wall displacement. The patient had poor chest wall expansion with deep inspiration. A computed tomographic scan of the chest (Figure 1) and a chest radiograph (Figure 2) are shown.
D.Congenital absence of the pectoris major muscle
Corresponding author and reprints: Peter H. Lin, MD, Divison of Vascular Surgery, Baylor College of Medicine, Houston VAMC (112), 2002 Holcomb Blvd, Houston, TX 77030 (e-mail: email@example.com).
Brinkman W, Lumsden AB, Lin PH. Image of the Month. Arch Surg. 2002;137(3):359–360. doi: