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Hypogonadotropic hypogonadism 24 without anosmia

Synonyms
Follicle-stimulating hormone deficiency, isolated; HYPOGONADOTROPIC HYPOGONADISM 24 WITH OR WITHOUT ANOSMIA; Isolated FSH deficiency; Isolated follicle-stimulating hormone (FSH) deficiency
Modes of inheritance
Autosomal recessive inheritance (Orphanet)

Summary

Congenital idiopathic hypogonadotropic hypogonadism (IHH) is a disorder characterized by absent or incomplete sexual maturation by the age of 18 years, in conjunction with low levels of circulating gonadotropins and testosterone and no other abnormalities of the hypothalamic-pituitary axis. Idiopathic hypogonadotropic hypogonadism can be caused by an isolated defect in gonadotropin-releasing hormone (GNRH; 152760) release, action, or both. Other associated nonreproductive phenotypes, such as anosmia, cleft palate, and sensorineural hearing loss, occur with variable frequency. In the presence of anosmia, idiopathic hypogonadotropic hypogonadism has been called 'Kallmann syndrome (KS),' whereas in the presence of a normal sense of smell, it has been termed 'normosmic idiopathic hypogonadotropic hypogonadism (nIHH)' (summary by Raivio et al., 2007). Because families have been found to segregate both KS and nIHH, the disorder is here referred to as 'hypogonadotropic hypogonadism with or without anosmia (HH).' For a general phenotypic description and a discussion of genetic heterogeneity of hypogonadotropic hypogonadism with or without anosmia, see 147950. [from OMIM]

Available tests

22 tests are in the database for this condition.

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Clinical tests (22 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: HH24, FSHB
    Summary: follicle stimulating hormone subunit beta

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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