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Start free with EleplanCutaneous mastocytosis-deafness-microtia syndrome
ORPHA:2135Malformation syndrome
Also called Cutaneous mastocytosis-hearing loss-microtia syndrome · Mastocytosis-short stature-deafness syndrome · Mastocytosis-short stature-hearing loss syndrome
What it is
A rare multiple congenital anomalies syndrome characterized by cutaneous mastocytosis, microcephaly, microtia and/or hearing loss, hypotonia and skeletal anomalies (e.g. clinodactyly, camptodactyly, scoliosis). Additional common features are short stature, intellectual disability and difficulties. Facial dysmorphism may include upslanted palpebral fissures, highly arched palate and micrognathia. Rarely, seizures and asymmetrically small feet have been reported.
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
Very common80–99%
31- Abdominal pain
- Abnormality of skin pigmentation
- Areflexia
- Camptodactyly of finger
- Clinodactyly of the 5th finger
- Conductive hearing impairment
- Delayed cranial suture closure
- Erythema
- Failure to thrive
- Generalized hyperpigmentation
- Hearing impairment
- High palate
- Hypotonia
- Irregular hyperpigmentation
- Macule
- Mastocytosis
- Microcephaly
- Micrognathia
- Microtia
- Optic atrophy
- Papule
- Proptosis
- Pruritus
- Seizure
- Short stature
- Subcutaneous nodule
- Thick lower lip vermilion
- Triangular face
- Upslanted palpebral fissure
- Urticaria
- Ventriculomegaly
Sometimes5–29%
21- Abnormality of the skeletal system
- Arrhythmia
- Fatigue
- Hypotension
- Immunologic hypersensitivity
- Intellectual disability
- Irritability
- Lichenification
and 13 more in this range
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.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
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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