PMC10022727_01
Patients' foot wound: female, 70 years old, with right foot ulcer.
fonc-13-1089578-g001.jpg
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f1
After standard treatment including blood sugar control, blood pressure control, debridement and antibiotic therapy, there was no progress noted, and a black line in the shape of a half-moon appeared ( Figure 1 ).
PMC10022727_02
Patients' foot wound. female,66years old, with blackening at the end of the third toe of the right foot.
fonc-13-1089578-g002.jpg
PMC10022727_02_fonc-13-1089578-g002.jpg
f2
Without satisfactory results, the wound remained unhealed and become black ( Figure 2 ).