14th July 2026

Background

Benign skin tumours encompass cherry angiomas, actinic keratosis, sebaceous hyperplasia, seborrheic keratosis, keratoacanthomas, lipoma, sebaceous cysts, and pyogenic granuloma.

Cherry angiomas, or Campbell de Morgan spots, are common benign non-blanching lesions of the skin. Management involves reassurance and, in a few cases, removal for cosmetic reasons. 

Actinic keratosis, otherwise known as solar keratosis, is typically seen in fair-skinned people after long-term sun exposure caused by UV rays. Most lesions do not progress to malignancy. Dermoscopy reveals erythema, keratin plugs and scale.

Sebaceous hyperplasia is a common benign condition associated with enlarged sebaceous glands, which appear as small yellow bumps. 

Seborrheic keratosis is associated with hyperpigmented plaques with a ‘stuck-on’ appearance. Dermoscopy reveals pseudo comedones with milia-like cysts and hairpin vessels.

Keratoacanthomas are benign, rapidly growing lesions which typically spontaneously resolve over four to six months.

Lipomas are slow-growing benign tumours. Most lipomas do not cause any symptoms and usually do not require treatment. 

Sebaceous cysts typically present as a painless lump and, on occasion, are filled with discharge. If uncomplicated, usually left alone; however, if inflamed or infected, sebaceous cysts may warrant further management.

Pyogenic granuloma are rapidly growing benign lesion. Treatment options include 5% imiquimod cream, steroid injections, or excision.