raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:478

Kallmann syndrome

Synonyms: Congenital hypogonadotropic hypogonadism with anosmia · Olfacto-genital pathological sequence

Type
Clinical subtype
Group
Subtype of disorder
Inheritance
Autosomal dominant, Autosomal recessive, Multigenic/multifactorial, X-linked recessive
Age of onset
Adolescent, Childhood
Status
active

Kallmann syndrome (KS) is a developmental genetic disorder characterized by the association of congenital hypogonadotropic hypogonadism (CHH) due to gonadotropin-releasing hormone (GnRH) deficiency, and anosmia or hyposmia (with hypoplasia or aplasia of the olfactory bulbs).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enKallmann syndromeCongenital hypogonadotropic hypogonadism with anosmia · Olfacto-genital pathological sequence
frSyndrome de KallmannDysplasie olfacto-génitale de Kallmann-De Morsier · Hypogonadisme hypogonadotrope congénital avec anosmie
deKallmann-SyndromKongenitaler hypogonadotroper Hypogonadismus mit Anosmie · Olfaktogenitales Syndrom
esSíndrome de KallmannHipogonadismo hipogonadotrópico congénito con anosmia · Secuencia patológica olfato-genital
itSindrome di KallmannIpogonadismo ipogonadotropo congenito con anosmia · Sequenza patologica olfatto-genitale
nlSyndroom van KallmannCongenitaal hypogonadotroop hypogonadisme met anosmie · Olfacto-genitale pathologische sequentie
ptSíndrome KallmannSequência patológica olfato-genital · Síndrome de hipogonadismo hipogonadotrópico congénito com anosmia
plZespół KallmannaPatologiczna sekwencja węchowo-płciowa · Wrodzony hipogonadyzm hipogonadotropowy z anosmią
csKallmannův syndromVrozený hypogonadotropní hypogonadismus s anosmií · Olfaktogenitální patologická sekvence
ukСиндром КалманаВроджений гіпогонадотропний гіпогонадизм з аносмією · Ольфакто-генітальна патологічна послідовність
zhKallmann综合征先天性低促性腺激素性功能减退症伴嗅觉丧失
trKallmann sendromuOlfakto-genital patolojik dizi · Anosmili Doğumsal hipogonadotropik hipogonadizm

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM147950NTBTvalidated
OMIM244200BTNTvalidated
OMIM308700BTNTvalidated
OMIM610628BTNTvalidated
OMIM612370BTNTvalidated
OMIM612702BTNTvalidated
OMIM614837BTNTvalidated
OMIM614838BTNTvalidated
OMIM614840BTNTvalidated
OMIM614858BTNTvalidated
OMIM614880BTNTvalidated
OMIM614897BTNTvalidated
OMIM615266BTNTvalidated
OMIM615267BTNTvalidated
OMIM615269BTNTvalidated
OMIM615270BTNTvalidated
OMIM615271BTNTvalidated
OMIM616030BTNTvalidated
OMIM618841BTNTvalidated
ICD-10E23.0NTBTinclusionvalidated
ICD-115A61.2NTBTindexvalidated
MONDO0018800Evalidated
MeSHD017436Evalidated
UMLSC0162809Evalidated
GARD10771Evalidated
MedDRA10053142Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

23 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ANOS1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:6211ENSG00000011201300836Xp22.31anosmin 121168128[PMID]
DCCDisease-causing germline mutation(s) (loss of function) inAssessedHGNC:2701ENSG0000018732312047018q21.2DCC netrin 1 receptor29202173[PMID]
FEZF1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:22788ENSG000001286106133017q31.32FEZ family zinc finger 125192046[PMID]
FGF8Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:3686ENSG0000010783160048310q24.32fibroblast growth factor 818596921[PMID]_20463092[PMID]
FGFR1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:3688ENSG000000777821363508p11.23fibroblast growth factor receptor 117235395[PMID]
HS6ST1Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:5201ENSG000001367206048462q14.3heparan sulfate 6-O-sulfotransferase 121700882[PMID]_23997646[PMID]
PROK2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:18455ENSG000001634216070023p13prokineticin 218682503[PMID]
PROKR2Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:15836ENSG0000010129260712320p12.3prokineticin receptor 218682503[PMID]
SEMA3ADisease-causing germline mutation(s) (loss of function) inAssessedHGNC:10723ENSG000000752136039617q21.11semaphorin 3A22416012[PMID]
SOX10Disease-causing germline mutation(s) (loss of function) inAssessedHGNC:11190ENSG0000010014660222922q13.1SRY-box transcription factor 1023643381[PMID]
CCDC141Disease-causing germline mutation(s) inAssessedHGNC:26821ENSG000001634926160312q31.2coiled-coil domain containing 14128324054[PMID]
CHD7Disease-causing germline mutation(s) inAssessedHGNC:20626ENSG000001713166088928q12.2chromodomain helicase DNA binding protein 718834967[PMID]
DUSP6Disease-causing germline mutation(s) inAssessedHGNC:3072ENSG0000013931860274812q21.33dual specificity phosphatase 623643382[PMID]
EMX2Disease-causing germline mutation(s) inAssessedHGNC:3341ENSG0000017037060003510q26.11empty spiracles homeobox 241765865[PMID]
FGF17Disease-causing germline mutation(s) inAssessedHGNC:3673ENSG000001588156037258p21.3fibroblast growth factor 1723643382[PMID]
FLRT3Disease-causing germline mutation(s) inAssessedHGNC:3762ENSG0000012584860480820p12.1fibronectin leucine rich transmembrane protein 323643382[PMID]
HESX1Disease-causing germline mutation(s) inAssessedHGNC:4877ENSG000001636666018023p14.3HESX homeobox 123465708[PMID]
IL17RDDisease-causing germline mutation(s) inAssessedHGNC:17616ENSG000001447306068073p14.3interleukin 17 receptor D23643382[PMID]
NDNFDisease-causing germline mutation(s) inAssessedHGNC:26256ENSG000001733766165064q27neuron derived neurotrophic factor31883645[PMID]
SPRY4Disease-causing germline mutation(s) inAssessedHGNC:15533ENSG000001876786079845q31.3sprouty RTK signaling antagonist 423643382[PMID]
TACR3Disease-causing germline mutation(s) inAssessedHGNC:11528ENSG000001698361623324q24tachykinin receptor 323643382[PMID]_19079066[PMID]
WDR11Disease-causing germline mutation(s) inAssessedHGNC:13831ENSG0000012000860641710q26.12WD repeat domain 1120887964[PMID]
CCDC141Major susceptibility factor inAssessedHGNC:26821ENSG000001634926160312q31.2coiled-coil domain containing 14128324054[PMID]
5

Prevalence and incidence

4 records
TypeClassValueAreaQualificationValidationSource
Point prevalence1-9 / 100 0003.75 / 100 000EuropeValue and classValidated[EXPERT]
Annual incidence1-9 / 100 0005 / 100 000FranceValue and classValidated4147392[PMID]
Annual incidence1-9 / 100 0002.1 / 100 000FinlandValue and classValidated21682876[PMID]
Annual incidence1-9 / 1 000 0000.6 / 100 000Specific populationValue and classValidated3791676[PMID]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

44 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0000458Anosmia
HP:0000830Anterior hypopituitarism
HP:0000144Decreased fertility
HP:0008734Decreased testicular size
HP:0000823Delayed puberty
HP:0100639Erectile dysfunction
HP:0000044Hypogonadotropic hypogonadism
HP:0008736Hypoplasia of penis
HP:0004409Hyposmia
HP:0003164Hypothalamic gonadotropin-releasing hormone (GNRH) deficiency
HP:0000054Micropenis
Frequent (79-30%)
HP:0001608Abnormality of the voice
HP:0003187Breast hypoplasia
HP:0000028Cryptorchidism
HP:0004349Reduced bone mineral density
Occasional (29-5%)
HP:0030680Abnormal cardiovascular system morphology
HP:0000008Abnormal morphology of female internal genitalia
HP:0001251Ataxia
HP:0001335Bimanual synkinesia
HP:0000175Cleft palate
HP:0000551Color vision defect
HP:0002750Delayed skeletal maturation
HP:0001260Dysarthria
HP:0030016Dyspareunia
HP:0001288Gait disturbance
HP:0000771Gynecomastia
HP:0001252Hypotonia
HP:0008064Ichthyosis
HP:0001324Muscle weakness
HP:0000639Nystagmus
HP:0001513Obesity
HP:0010550Paraplegia
HP:0001761Pes cavus
HP:0001763Pes planus
HP:0000786Primary amenorrhea
HP:0000508Ptosis
HP:0002757Recurrent fractures
HP:0000104Renal agenesis
HP:0001250Seizure
HP:0000407Sensorineural hearing impairment
HP:0002652Skeletal dysplasia
HP:0009804Tooth agenesis
HP:0001337Tremor
HP:0000505Visual impairment

Run the differential on the 11 obligate / very frequent terms

7

Sources for this card