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

Ulnar hypoplasia lobster claw deformity of feet


Other Names:
Severe ulnar aplasia and lobster claw feet; Familial ulnar aplasia and lobster claw syndrome; Complete absence of the ulna and of fingers 2 to 5, together with lobster-claw deformity of the feet; Severe ulnar aplasia and lobster claw feet; Familial ulnar aplasia and lobster claw syndrome; Complete absence of the ulna and of fingers 2 to 5, together with lobster-claw deformity of the feet; Van De Berghe Dequeker syndrome See More
Categories:
The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 1122

Definition
Ulnar hypoplasia-split foot syndrome is characterised by the association of severe ulnar hypoplasia, absence of fingers two to five, and split-foot. It has been described in four males belonging to two generations of the same family. X-linked recessive inheritance is suggested, but autosomal dominant transmission cannot be excluded.

Visit the Orphanet disease page for more resources.
Last updated: 4/1/2007

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
Learn More:
HPO ID
80%-99% of people have these symptoms
Aplasia/Hypoplasia of the radius 0006501
Hypoplasia of the ulna
Underdeveloped inner large forearm bone
0003022
Split hand
Claw hand
Claw hand deformities
Claw hands
Claw-hand deformities
Split-hand
[ more ] 		0001171
30%-79% of people have these symptoms
Split foot
Lobster-claw foot deformity
Split-foot
[ more ] 		0001839
Percent of people who have these symptoms is not available through HPO
Short finger
Stubby finger
0009381
Syndactyly
Webbed fingers or toes
0001159
X-linked recessive inheritance 0001419
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Last updated: 7/1/2020

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources

Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Clinical Research Resources

  • The University of California San Francisco Limb Study is researching the genetic causes of limb malformations. They are looking for participants who only have problems with their limbs, such as fused or webbed fingers/toes, more than 5 fingers/toes, less than 5 fingers/toes, split hand and foot also called ectrodactyly, short fingers/toes, bent pinky fingers, extra long fingers, flexed fingers, club foot, etc. Visit the study’s website to learn more about who is eligible to take part in this study.

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.

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.
  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • 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 Ulnar hypoplasia lobster claw deformity of feet. Click on the link to view a sample search on this topic.

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