Shagreen patch — flesh colored and dimpled, resembling an orange peel, skin patch found on the lower back.
SHANK3 gene — a gene that encodes for a master scaffolding protein involved in synaptic functioning.
Subependymal giant cell astrocytomas (SEGAs) — tumor-like lesions in the brain that have grown and if left untreated, can cause hydrocephalus.
Subependymal nodules (SENs) — benign, non-growing lesions found along the wall of the lateral ventricles in the brain.