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Keratosis Plantaris. Presented by Dr. Paul E. Bechet.
G. L., a woman aged 26, from the New York Skin and Cancer Hospital, states that her lesions began when she was 14 and have progressively enlarged and thickened since that time. Her father has diabetes, and her maternal grandmother also had diabetes. Both her father and mother have callosities but are not inconvenienced by them.The results of the patient's dextrose tolerance tests were normal. Between 1935 and 1938 she received twenty roentgen treatments of undetermined dosage at another institution. A few months after her last treatment a necrotic area developed on each heel, which healed after six months but which have recurred off and on since then.On inspection both soles exhibit large raised dark gray, horny masses from 1 to 1.5 cm. thick. One of them extends from the distal phalanx of the great toe, across the sole at
Hopkins JG, Cannon AB. NEW YORK DERMATOLOGICAL SOCIETY. Arch Derm Syphilol. 1942;46(5):762–774. doi:10.1001/archderm.1942.01500170146024
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