Imbedded hair is rarely thought of as a cause of a greatly thickened and painful callus on the sole. Such a callus is usually found to contain a plantar wart or to be the result of scar formation following removal of a wart in a weight-bearing area. A foreign-body reaction caused by hairs usually occurs in barbers and at the webs of the fingers.1
Report of Case
The patient was a 47-year-old white woman. She was seen April 23, 1955, because of a yellowish-white callus about 0.3 cm. thick, covering the entire plantar surface of the right heel and extending part way up the medial side of the heel. Toward the medial edge of the plantar surface of the heel there was a zone 2 cm. long of black dots deeply imbedded in the callus. The entire foot was mottled pink and pale, and was cool
PRATT AG. Hyperkeratosis of Heel Caused by Foreign Body (Hair)Report of a Case. AMA Arch Derm. 1956;74(5):469–470. doi:10.1001/archderm.1956.01550110013005
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