U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Xeroderma pigmentosum, group E

Xeroderma pigmentosum, group E

Synonyms
DDB2-Related Xeroderma Pigmentosum; XERODERMA PIGMENTOSUM V; XP, GROUP E; Xeroderma pigmentosum, complementation group E; Xeroderma pigmentosum, complementation group E, DDB-negative form; Xeroderma pigmentosum, group E, DDB-negative subtype

Summary

Excerpted from the GeneReview: Xeroderma Pigmentosum
Xeroderma pigmentosum (XP) is characterized by: Acute sun sensitivity (severe sunburn with blistering, persistent erythema on minimal sun exposure) with marked freckle-like pigmentation of the face before age two years; Sunlight-induced ocular involvement (photophobia, severe keratitis, atrophy of the skin of the lids, ocular surface neoplasms); Greatly increased risk of sunlight-induced cutaneous neoplasms (basal cell carcinoma, squamous cell carcinoma, melanoma) within the first decade of life. Approximately 25% of affected individuals have neurologic manifestations (acquired microcephaly, diminished or absent deep tendon stretch reflexes, progressive sensorineural hearing loss, progressive cognitive impairment, and ataxia). The most common causes of death are skin cancer, neurologic degeneration, and internal cancer. The median age at death in persons with XP with neurodegeneration (29 years) was found to be younger than that in persons with XP without neurodegeneration (37 years).
Full text of GeneReview (by section):
Summary
Diagnosis
Clinical Characteristics
Genetically Related (Allelic) Disorders
Differential Diagnosis
Management
Genetic Counseling
Resources
Molecular Genetics
Chapter Notes
References
Authors:
Kenneth H Kraemer
John J DiGiovanna
Deborah Tamura
view full author information

Available tests

21 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Clinical tests (21 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: DDBB, UV-DDB2, XPE, DDB2
    Summary: damage specific DNA binding protein 2

Clinical features

Help
Imported from Human Phenotype Ontology (HPO)

Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.