National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

Chromosome 10p deletion



Other Names:
Deletion 10p; Monosomy 10p; 10p deletion; Deletion 10p; Monosomy 10p; 10p deletion; 10p monosomy; Partial monosomy 10p See More
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Chromosome 10p deletion is a chromosome abnormality that occurs when there is a missing (deleted) copy of genetic material on the short arm (p) of  chromosome 10. The severity and the signs and symptoms depend on the size and location of the deletion and which genes are involved. Features may affect many parts of the body and may include low birth weight, growth delay, developmental delay, low muscle tone (hypotonia), and communication difficulties. Birth defects, various medical problems, and/or distinctive facial features may also be present.[1]

Most 10p deletions are not inherited and occur randomly during the formation of egg or sperm cells, or very early in fetal development. Some 10p deletions are present because a parent has a rearrangement of genetic material on his/her chromosomes. This rearrangement is usually a balanced translocation, which typically does not cause any health problems. In some cases, a parent has the same deletion as the child. Chromosome testing of both parents can provide information about whether the deletion was inherited.[1] Treatment for chromosome 10p deletion is based on the signs and symptoms in each person.

This page is meant to provide general information about 10p deletions. You can contact GARD if you have questions about a specific deletion on chromosome 10p. To learn more about chromosome abnormalities, please visit our GARD webpage on FAQs about Chromosome Disorders.
Last updated: 5/28/2018

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
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HPO ID
80%-99% of people have these symptoms
Convex nasal ridge
Beaked nose
Beaklike protrusion
Hooked nose
Polly beak nasal deformity
[ more ]
0000444
Cryptorchidism
Undescended testes
Undescended testis
[ more ]
0000028
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Severe global developmental delay 0011344
Wide nasal bridge
Broad nasal bridge
Broad nasal root
Broadened nasal bridge
Increased breadth of bridge of nose
Increased breadth of nasal bridge
Increased width of bridge of nose
Increased width of nasal bridge
Nasal bridge broad
Wide bridge of nose
Widened nasal bridge
[ more ]
0000431
30%-79% of people have these symptoms
Abnormality of cardiovascular system morphology 0030680
Bilateral single transverse palmar creases 0007598
Clinodactyly of the 5th finger
Permanent curving of the pinkie finger
0004209
Downslanted palpebral fissures
Downward slanting of the opening between the eyelids
0000494
Hearing impairment
Deafness
Hearing defect
[ more ]
0000365
Hypertelorism
Wide-set eyes
Widely spaced eyes
[ more ]
0000316
Hypoplastic toenails
Underdeveloped toenails
0001800
Intrauterine growth retardation
Prenatal growth deficiency
Prenatal growth retardation
[ more ]
0001511
Low-set, posteriorly rotated ears 0000368
Macrotia
Large ears
0000400
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference
[ more ]
0000252
Micrognathia
Little lower jaw
Small jaw
Small lower jaw
[ more ]
0000347
Short neck
Decreased length of neck
0000470
Short stature
Decreased body height
Small stature
[ more ]
0004322
Strabismus
Cross-eyed
Squint
Squint eyes
[ more ]
0000486
5%-29% of people have these symptoms
Abnormal fingernail morphology
Abnormal fingernails
Abnormality of the fingernails
[ more ]
0001231
Abnormality of the elbow
Abnormality of the elbows
0009811
Anal atresia
Absent anus
0002023
Cleft palate
Cleft roof of mouth
0000175
Ectopic anus
Abnormal anus position
0004397
Hypoplasia of penis
Underdeveloped penis
0008736
Joint stiffness
Stiff joint
Stiff joints
[ more ]
0001387
Non-midline cleft lip 0100335
Polycystic ovaries 0000147
Webbed neck
Neck webbing
0000465
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Last updated: 7/1/2020

Related diseases are conditions that have similar signs and symptoms. A health care provider may consider these conditions in the table below when making a diagnosis. Please note that the table may not include all the possible conditions related to this disease.

Conditions with similar signs and symptoms from Orphanet
The differential diagnosis for patients with distal monosomy 10p should include deletion 22q11 syndrome and other causes of hypoparathyroidism, depending on the phenotype.
Visit the Orphanet disease page for more information.

Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

Where to Start

  • Genetics Home Reference (GHR) contains information on Chromosome 10p deletion. This website is maintained by the National Library of Medicine.
  • The National Organization for Rare Disorders (NORD) has a report for patients and families about this condition. NORD is a patient advocacy organization for individuals with rare diseases and the organizations that serve them.
  • Unique is a source of information and support to families and individuals affected by rare chromosome disorders. Click on the link to view information about 10p deletions.

In-Depth Information

  • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
  • PubMed is a searchable database of medical literature and lists journal articles that discuss Chromosome 10p deletion. Click on the link to view a sample search on this topic.

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