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Start free with EleplanX-linked intellectual disability, Cabezas type
ORPHA:85293Malformation syndrome
Also called Cabezas syndrome
What it is
An X-linked syndromic intellectual disability characterized by developmental delay, intellectual disability (ID) with severe speech impairment, and short stature. Variable additional clinical features have been associated, including behavioral disturbances, gait abnormalities, tremor, seizures, hypogonadism, truncal obesity, unspecific facial dysmorphism, and small hands and feet.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood
- Inheritance
- X-linked 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%
20- Abnormal hair pattern
- Abnormality of earlobe
- Abnormality of speech or vocalization
- Absent speech
- Clinodactyly of the 5th finger
- Downslanted palpebral fissures
- Down-sloping shoulders
- Hyperactivity
- Hypoplasia of penis
- Inguinal hernia
- Intellectual disability, moderate
- Intellectual disability, severe
- Open bite
- Prominent nose
- Short neck
- Short palm
- Short philtrum
- Small hand
- Synophrys
- Wide mouth
Common30–79%
15Sometimes5–29%
14- Acanthosis nigricans
- Biparietal narrowing
- Camptodactyly of finger
- Cubitus valgus
- EEG abnormality
- Epicanthus
- Hyperhidrosis
- Hypogonadism
and 6 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.
Gene
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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