Growth delay due to IGF-I resistance is characterized by variable intrauterine and postnatal growth retardation and elevated serum IGF-I levels. Addition features include variable degrees of intellectual deficit, microcephaly and dysmorphism (broad nasal bridge and tip, smooth philtrum, thin upper and everted lower lips, short fingers, clinodactyly, wide-set nipples and pectus excavatum). The disease is Monarch Disease Ontology entry MONDO_0010038 (growth delay due to insulin-like growth factor I resistance). Also known as: resistance to IGF-1.