Roifman syndrome is a rare, genetic immuno-osseous dysplasia disorder characterized by pre- and post-natal growth retardation, hypotonia, borderline to moderate intellectual disability, retinal dystrophy, spondyloepiphyseal dysplasia (epiphyseal dysplasia, epiphyses ossification delay, vertebral changes) and skeletal anomalies (brachydactyly, fifth finger clinodactyly), as well as humeral immunodeficiency characterized by inability to generate specific antibodies and low circulating B-cells. Craniofacial dysmorphism, that typically inlcudes microcephaly, hypertelorism, long palpebral fissures, prominent eyelashes, a narrow, tubular, upturned nose with hypoplastic alae nasi, long philtrum and thin upper lip, are also associated.

Hypogonadotropic hypogonadism is characterized by reduced function of the gonads (testes in males or ovaries in females) and results from the absence of the gonadal stimulating pituitary hormones: follicle stimulating hormone (FSH) and luteinizing hormone (LH).