Which of the following is NOT seborrheic keratosis?
Well done, correct.
Seborrhoeic keratosis is classically a benign warty or waxy plaque/ papule that appears during adult life as a common sign of aging skin. It is estimated that >90% of adults over 60 years old have them. They may arise on any area of skin with the exception of palms and soles and mucous membranes.
Viral warts are common benign lesions caused by human papillomavirus (HPV) infection. They can be categorised by site; cutaneous or mucosal. Cutaneous viral warts are sharply demarcated and characterised by a hard, round or irregular and light grey, yellow, brown, or grey-black nodules. They commonly appear at sites most often subject to trauma (e.g, fingers, elbows, feet) but may spread elsewhere. Small red/ black dots (papillary capillaries) may be visible on the wart surface. They are often tender.
