SUMMARY
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.
The diameter of collagen fibrils was studied in a patient with porphyria cutanea tarda in a specimen obtained from the sclerodermatous skin of the back. A bimodal distribution of the diameter of the fibrils was observed with maxima at 33.5 nm and 68.7 nm. The mean diameter was 67 nm with a standard deviation of 10.6 nm. These results are similar to those obtained previously in localized scleroderma (morphoea).
An 8-month-old girl with acrodermatitis enteropathica was treated with 25% zinc oxide paste, locally, in the diaper area. A rapid improvement of the symptoms was observed a week after initiation of the treatment.
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