Cutaneous Anthrax

The patient is a 57 year old male who presented with cutaneous anthrax following contact with a contaminated cow-hide. The lesion was ulcerated and indurated.

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Biopsy images

There is massive subepidermal edema.

There is extensive dermal necrosis accompanied
by an intense neutrophil infiltrate.

Numerous thrombosed vessels are present.

Gram stain showing large anthrax bacilli.