Caring for someone with this diagnosis? Eleplan keeps diagnoses, medications, documents and every specialist in one plan.
Start free with EleplanDistal deletion 10p syndrome
ORPHA:1580Clinical group
Also called Distal monosomy 10p · Monosomy 10pter · Telomeric deletion 10p
What it is
Distal monosomy 10p is a rare chromosomal disorder in which the tip of the short arm (p arm) of chromosome 10 is deleted resulting in a variable phenotype depending on the size of the deletion. The deletion may involve only the terminal 10p15 band, or extend towards the centromere to bands 10p14 or 10p13.
Key facts
- Prevalence
- <1 / 1 000 000 (Europe)
- Age of onset
- Childhood
- Inheritance
- Not applicable, Unknown
- Classified as
- Clinical group
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%
5Common30–79%
16- Abnormal cardiovascular system morphology
- Bilateral single transverse palmar creases
- Clinodactyly of the 5th finger
- Downslanted palpebral fissures
- Hearing abnormality
- Hearing impairment
- Hypertelorism
- Hypoplastic toenails
- Intrauterine growth retardation
- Macrotia
- Microcephaly
- Micrognathia
- Posteriorly rotated ears
- Short neck
- Short stature
- Strabismus
Sometimes5–29%
10- Abnormal fingernail morphology
- Abnormality of the elbow
- Anal atresia
- Cleft palate
- Ectopic anus
- Hypoplasia of penis
- Joint stiffness
- Non-midline cleft of the upper lip
and 2 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.
Genes reported in subtypes
Orphanet records this gene on 1 more specific entry under this disorder, not on this entry itself:
A well-studied disease is usually split into subtypes, and the gene is curated on whichever one the evidence belongs to. Open a subtype to see which gene goes with it.
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.
Powered by Eleplan
A rare diagnosis is just the start. Eleplan keeps the whole care plan in one place.
Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, so you are not retelling the same story to every new specialist. With Ellie, your AI care assistant, on top of it. Free to start.