PMC9842775_01
Findings of subcutaneous abscess caused by anaerobic bacteria. (A) High-resolution computed tomography results suggestive of subcutaneous abscess (arrow). (B) Subcutaneous abscess after incision and drainage. (C) A Gram stain smear of the subcutaneous abscess (original magnification, x400) where Gram-positive cocci were phagocytosed (arrow). (D) A Gram stain smear of the subcutaneous abscess (original magnification, x400) where Gram-positive rods were phagocytosed (arrow).
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A high-resolution computed tomography scan of his chest revealed a subcutaneous lesion without deterioration of his COVID-19 lung disease (Figure 1A). After incision and drainage of the subcutaneous abscess (Figure 1B), the patient was administered meropenem (1.0 g every 8 h), vancomycin (1.0-1.5 g every 12 h with therapeutic drug monitoring), and clindamycin (0.9 g every 8 h) as an empiric therapy. The Gram stain smear of the abscess identified that these bacteria were phagocytosed (Figure 1C,D).