Figure 3.

Surgical findings of the penetrating pulmonary injury. (A) Penetrating pulmonary injury in the left upper lobe and leakage of pus from its margin (orange arrow); (B) the foreign body was a rusty nail (green arrow); (C,D) the whole penetrating wound was treated by partial pulmonary resection to control the infection (orange arrow, margin of the penetrating wound; blue arrow, penetrating wound of the chest wall on the ventral surface; white arrow, the chest wall injury due to the foreign body on the dorsal surface). LUL, left upper lobe; Ao, aortic arch.