Cornu Cutaneum.
(Synonyms: Cornu Humanum; Cutaneous Horn.)
What is cornu cutaneum?
A cutaneous horn is a circumscribed hypertrophy of the epidermis, forming an outgrowth of horny consistence and of variable size and shape.
At what age and upon what parts are cutaneous horns observed?
They are usually met with late in life, and are mostly seated upon the face and scalp.
Fig. 32.
Cutaneous Horns. Showing beginning epitheliomatous degeneration of the base.
(After Pancoast.)