Sebaceous horn

Sebaceous horn

A sebaceous horn, also known as a cutaneous horn, is a type of skin lesion that appears as a conical projection above the surface of the skin. It is composed of keratin, the same material that makes up the outer layer of human skin, hair, and nails. Sebaceous horns can vary greatly in size, shape, and location, but they are most commonly found on areas of the skin that are exposed to the sun, such as the face, ears, and hands.

Causes and Risk Factors

The exact cause of sebaceous horns is not fully understood, but they are often associated with underlying skin conditions or lesions, such as actinic keratosis, warts, and squamous cell carcinoma. Prolonged exposure to sunlight and radiation, advanced age, and a compromised immune system are considered risk factors for the development of sebaceous horns.

Symptoms and Diagnosis

Sebaceous horns are typically characterized by their distinctive horn-like appearance. They may be yellow, brown, or black in color and can range from a few millimeters to several centimeters in length. While they are usually painless, they can become tender or bleed if injured.

Diagnosis of a sebaceous horn involves a physical examination by a healthcare professional. In some cases, a biopsy may be performed to rule out the presence of skin cancer or other underlying conditions.

Treatment

Treatment for sebaceous horns typically involves surgical removal, which can be done through various methods such as cryotherapy, curettage, or excision. The choice of treatment depends on the size and location of the horn, as well as the presence of any underlying skin conditions. It is important to treat sebaceous horns promptly to prevent potential complications, such as infection or the development of skin cancer.

Prevention

Preventing the formation of sebaceous horns involves protecting the skin from excessive sun exposure by wearing protective clothing, using sunscreen, and avoiding the sun during peak hours. Regular skin examinations by a healthcare professional can also help in the early detection and treatment of skin lesions that may develop into sebaceous horns.

See Also

• Keratin
• Skin cancer
• Sunscreen