Under the title "acne necrotica miliaris of the scalp" Lane1 in 1933 reported the first cases in this country of the condition which had been described by Sabouraud in 19282 and 19323 under the title acné nécrotique miliare. Ormsby,4 under the title "pustular perifolliculitis," described an uncommon variety of folliculitis of the scalp, found in adults, which is comparable to acne necrotica miliaris. Sabouraud regarded the condition as an abortive or diminutive form of acne necrotica and showed that the histologic changes were comparable in the two conditions and that Staphylococcus aureus played a rôle in the etiology, as evidenced by cultures and histologic examination of the crusts.
Clinically one encounters from a dozen to a hundred pinhead-sized lesions (from 1 to 3 mm. in diameter) on any part of the scalp. On superficial examination these lesions might be regarded as excoriations or tiny crusts,
MONTGOMERY H. ACNE NECROTICA MILIARIS OF THE SCALP. Arch Derm Syphilol. 1937;36(1):40–44. doi:10.1001/archderm.1937.01480010044006
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