Monarch Disease Ontology entry MONDO_0009877 (Laron syndrome) is a congenital disorder characterized by marked short stature associated with normal or high serum growth hormone (GH) and low serum insulin-like growth factor-1 (IGF-I) levels which fail to rise after exogenous GH administration. Also known as: GH receptor deficiency, Growth Hormone Insensitivity, Growth hormone receptor deficiency, Laron-type dwarfism, Laron-type isolated somatotropin defect, complete growth hormone insensitivity, primary GH insensitivity, primary GH resistance.