Seborrhoea Kerativa

This affection is rare and peculiar, and the few cases that have been observed during recent years have been described under a variety of names. It appears to consist in a hyperplasia of the lining cells of the sebaceous glands, associated with keratization in place of the usual fatty degeneration of these cells. The result of this pathological process when generalized is a condition of the skin that may be likened to the surface of a magnified nutmeg grater. The orifices of the sebaceous follicles are widened, and from them project horny plugs in almost infinite number. The affection is chronic in its development, spreading gradually until almost the entire surface is involved. We have little definite knowledge of the subsequent course of the affection.