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Start free with EleplanKallmann syndrome-heart disease syndrome
ORPHA:2326Malformation syndrome
What it is
Kallmann syndrome with cardiopathy is characterised by hypogonadotropic hypogonadism associated with gonadotropin-releasing hormone (GnRH) deficiency, anosmia or hyposmia (with hypoplasia or aplasia of the olfactory bulbs) and complex congenital cardiac malformations (double-outlet right ventricle, dilated cardiomyopathy, right aortic arch). It represents a distinct clinical entity from Kallmann syndrome.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Infancy, Neonatal
- Inheritance
- Autosomal recessive
- Classified as
- Malformation syndrome
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
Common30–79%
21- Anomalous origin of left coronary artery from the pulmonary artery
- Bilateral cryptorchidism
- Cleft palate
- Cyanosis
- Decreased testicular size
- Delayed puberty
- Delayed skeletal maturation
- Dilated cardiomyopathy
- Double outlet right ventricle
- Growth delay
- Heart murmur
- Micropenis
- Osteopenia
- Osteoporosis
- Partial anosmiaDiagnostic criterion
- Pulmonary artery hypoplasia
- Renal agenesis
- Right aortic arch
- Sensorineural hearing impairment
- Short lingual frenulum
- Short stature
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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