keratoacanthomas

Keratoacanthomas are benign skin growths that typically appear on the hands and feet, although they can occur on other parts of the body. They are characterized by a small, red, scaly papule with a central crater or ulcer. The condition is often associated with human papillomavirus (HPV) infection, particularly HPV types 3 and 10. Keratoacanthomas are usually painless and grow slowly, often taking several weeks to reach their maximum size. They are not contagious and do not spread to other parts of the body.

Diagnosis of keratoacanthomas is typically based on clinical appearance and can be confirmed with a biopsy. Treatment is usually not necessary, as these lesions are benign and often resolve spontaneously within a few months. However, if the lesion is large, painful, or if there are concerns about potential malignancy, a biopsy may be performed to rule out other conditions such as squamous cell carcinoma.

Keratoacanthomas are more common in older adults and are often associated with chronic skin conditions like psoriasis or eczema. They are also more prevalent in individuals with weakened immune systems, such as those with HIV/AIDS or those undergoing immunosuppressive therapy. Regular skin examinations are recommended for individuals with a history of keratoacanthomas or those at risk for developing them.