Figure 3
Chest wall abscess histopathologic findings (A: gross B: microscopic). (A) The mass was a cystic lesion, 3.0 x 1.5 cm in size, filled with yellowish thick fluid. (B) The histopathology revealed a chronic granulomatous inflammation consisting of scattered epithelioid histiocytes, Langhans giant cells (yellow arrow) and areas of caseous necrosis, suggestive of a mycobacterial disease process (H&E stain, x100; inlet x400).