These red (erythematous) elevated skin lesions (papules) are tumors made-up of fibrous tissue (angiofibroma) and occur with tuberous sclerosis. Tuberous sclerosis affects both the nervous system and the skin (neurocutaneous) and may also produce other skin lesions including shagreen spots, ash-leaf macula, and periungual fibromas (a type of skin tumor).
Review Date 8/31/2021
Updated by: Josef Shargorodsky, MD, MPH, Johns Hopkins University School of Medicine, Baltimore, MD. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.