Cornu Cutaneum

Verrucous Carcinoma in a Giant Cutaneous Horn: A Case Report and Literature Review

“…e earliest documented case of cornu cutaneum was of Mrs. Margaret Gryffith, an elderly Welsh woman in London in 1588 [4]. e term cutaneous horn was coined because of its resemblance to an animal horn [5]. However, both are histologically different.…”

“…Several kinds of cutaneous horns have been described: (1) filiform horn, (2) papillomatous horn, and (3) verrucous horn. ey differ from one another in appearance, causation, and histologic features [5,6]. Base of a cutaneous horn may be associated with lesions mainly including squamous cell carcinoma, viral warts, actinic keratosis, keratoacanthoma, Bowen's disease, seborrheic keratosis, basal-cell carcinoma, and Kaposi sarcoma.…”

Solitary angiokeratoma presenting as cutaneous horn over the prepuce: A rare appearance

“…A study analyzing 643 cases histopathologically had reported the most common causes for cutaneous horns to be benign (61.1%), followed by premalignant (23.2%) and malignant (15.7%) in that order. [ 6 ] Montgomery[ 7 ] had proposed a classification for cutaneous horn way back in 1941. It was based on clinical appearance, apparent causation and histology [ Table 2 ].…”

Cutaneous Horn: A Malignant Lesion? A Brief Review of the Literature

“…The presence of a “satellite horn” or trauma as an inciting event have not been described in the literature. Before our current understanding of the associated pathologies, in 1941, Montgomery classified cutaneous horns based on apparent causation, appearance, and histologic features: Cutaneous horn springing from an epidermoid cyst. Horn of the mucosa developing from mucous membrane. Verrucous horn resulting from a wart. Papillomatous horn developing from cornified epithelium. Filliform horn arising from normal or hyperkeratotic skin. …”