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H syndrome

Disease definition

H syndrome is a systemic inherited histiocytosis, with characteristic cutaneous findings accompanying systemic manifestations. H syndrome refers to the major clinical findings of hyperpigmentation, hypertrichosis, hepatosplenomegaly, heart anomalies, hearing loss, hypogonadism, low height, and occasionally, hyperglycemia/diabetes mellitus. Due to overlapping clinical features, H syndrome is now considered to include pigmented hypertrichosis with insulin dependent diabetes mellitus syndrome (PHID), Faisalabad histiocytosis (FHC) and familial sinus histiocytosis with massive lymphadenopathy (FSHML).

ORPHA:168569

  • Synonym(s): -
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Childhood
  • ICD-10: D76.3
  • OMIM: 602782
  • UMLS: -
  • MeSH: -
  • GARD: 10239
  • MedDRA: -

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