Overgrowth Syndrome

**Semantic type:** Disease or Syndrome

**Definition:** A group of syndromes caused by genetic birth defects that may lead to the development of malignancies. It is characterized by a large body size or large body parts at birth, or excessive body growth early in childhood. Representative examples include neurofibromatosis, Beckwith-Wiedemann syndrome, and Sturge-Weber syndrome.

**Synonyms:** - overgrowth syndrome