Vidal presented before the Academie de Medecine in 1886 a twisted horn from the head of a woman.

This excrescence was ten inches long, and at the time of presentation reproduction of it was taking place in the woman.

Figure 76 shows a case of ichthyosis cornea pictured in the Lancet, 1850.
There was a woman of seventy-five, living near York, who had a horny growth from the face which she broke off and which began to reproduce, the illustration representing the growth during twelve months.

Lall mentions a horn from the cheek; Gregory reports one that measured 7 1/2 inches long that was removed from the temple of a woman in Edinburgh; Chariere of Barnstaple saw a horn that measured seven inches growing from the nape of a woman's neck; Kameya Iwa speaks of a dermal horn of the auricle; Saxton of New York has excised several horns from the tympanic membrane of the ear; Noyes speaks of one from the eyelid; Bigelow mentions one from the chin; Minot speaks of a horn from the lower lip, and Doran of one from the neck.
Gould cites the instance of a horn growing from an epitheliomatous penis.

The patient was fifty-two years of age and the victim of congenital phimosis.