Hello and thank you for posting your query on HCM
Cutaneous horna are benign growth of superficial layer of the epidermis
and overproduction of keratin.
The outer layer of skin is lined by a tough layer called the stratified squamous layer. This squamous layer produces keratin.
Horns are produced due to overproduction of keratin by the squamous epithelial cells
They are produced on the sun exposed skin of head and neck. they can also be produced on exposure to sunlight or at burn site. They can grow several centimeters in length.
Since it is made up of dead material- keratin, it can be excised with a razor blade witjout causing pain in the same manner as finger nails and hair are cut.
Chances of developing a malignancy are very rare in the horn.
Surgical removal is the treatment is the treatment of choice.
Dr Shailja P Wahal