Parra C A
Br J Dermatol. 1977 Jan;96(1):83-6. doi: 10.1111/j.1365-2133.1977.tb05191.x.
Elimination of necrotic material through the hair follicle as a means of excretion has been observed in three cases of necrobiosis lipoidica. Clinically this process presents as comedo-like plugs localized mainly in the periphery of the lesions.