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a "punched-out" shallow ulcer sometimes bordered or followed by a bulla, resulting from infection of the skin by Corynebacterium diphtheriae; systemic manifestations are the same as those of pharyngeal diphtheria.
A skin infection, usually at the site of a wound, caused by C. diphtheriae, usually occurring in humid, tropical regions with poor sanitation. It is characterized by slow healing and shallow ulcers containing a tough grayish membrane. It is treated with diphtheria antitoxin and penicillin or erythromycin.
See also: diphtheria