Dermatological manifestations of tuberous sclerosis complex (TSC)

Tuberous sclerosis complex (TSC) is a genetic multisystem disorder with prominent skin involvement that frequently occurs in early childhood. Dermatologic manifestations include facial angiofibromas, hypomelanotic macules, fibrous cephalic plaques, shagreen patches, and ungual fibromas. The International TSC Consensus Conference in 2012 provided guidelines for standardized baseline evaluation and follow-up. Detailed clinical dermatological evaluation at the time of diagnosis and annual skin examination is recommended for both pediatric and adult populations. The onset of dermatological manifestations is clearly age-related. However, dermatologists also have to assess for clinical manifestations beyond their own specialty. With advances in genetics and the advent of mTORC1 inhibitors, new specific therapeutic options have become available for TSC patients with skin manifestations. Early intervention is commonly recommended for symptomatic, rapidly evolving, disfiguring, or debilitating lesions. The consensus guidelines recommend "treatment as appropriate for the lesion and clinical context" and suggest the use of surgical excision, laser therapy, or topical mTORC1 inhibitors. Topical mTORC1 inhibitors present a useful option for TSC-associated skin lesions, particularly in medically complex patients. They may prevent or reduce the risks of subsequent surgeries and permanent scarring.