Fig. 3

Pathological findings (A) H&E stain, 40x: Two adjacent granulomas with central necrosis observed within the fibrofatty tissue outside the muscular layer. (B) H&E stain, 40x: A granulomatous nodule with central caseous necrosis located adjacent to the serosal surface. (C) H&E stain, 100x: Epithelioid granuloma and caseous necrosis within the outer fibrofatty tissue. (D) Acid-fast stain, 400x: A single acid-fast bacillus observed in the center