PMC10194659_01
Clinical presentation of cutaneous tuberculosis as a necrotizing ulcer: (A) initial painless plaque and edema with ulceration; (B) developed diffuse ulcer. Unlike in scrofuloderma, enlarged lymph nodes were not observed in this case. Although asthenia and weight loss were observed, neither crusts nor plaques were observed. Deep ulcers cause scarring of muscles and tendons and finally permanent disability. Cloth necrosis but without purulent exudate was found (A). The painless ulcer turned black (possibly due to dyscrasia, hyperviscosity, and hemolysis (B). After the therapeutic regimen, the ulcer has not developed further.
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F1
According to the patient's account, the changes were initially non-specific, an unremarkable reddish papulonodular and painless lesion forms, which rapidly enlarged and erode within 1-2 months (Figure 1A). No purulent exudate, green color, or other signs of pseudomonas folliculitis were observed (Figure 1). Finally, enlarged non-healing demarcated ulceration (with an indurated base and edges) was initially red and then dark blue and finally turned black (Figure 1B) possibly due to hemolysis. Deep ulcers cause scarring of muscles and tendons, finally leading to permanent disability (Figure 1B).