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Distal arthrogryposis type 5D is a rare subtype of distal arthrogryposis syndrome characterized by arthrogryposis multiplex congenita affecting the hands, feet, ankle, shoulders and/or neck, with camptodactyly of the fingers and limited knee and hip extension, associated with asymmetric ptosis and, less frequently, other ocular manifestations (e.g. ophthalmoplegia, strabismus). Affected individuals frequently have a bulbous nose, furrowed tongue, micro/retrognathia, a short neck, congenital hip dislocation, club feet, scoliosis and short stature.
Features include always present findings: Congenital hip dislocation, Decreased muscle mass, Tongue atrophy, and Excessive inward curvature of the lower spine (hyperlordosis) and others; and common findings: Narrow mouth, Limited elbow movement, Sideways curvature of the spine (scoliosis), and Open mouth and others. 28 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Muscles | 3 | Decreased muscle mass, Tongue atrophy, Elbow flexion contracture |
ECEL1 encodes endothelin converting enzyme like 1 (775 aa). May contribute to the degradation of peptide hormones and be involved in the inactivation of neuronal peptides Highest expression in Ovary (134.0 TPM) and Brain Hypothalamus (47.3 TPM).
Distal arthrogryposis type 5D is associated with mutations in the ECEL1 gene on chromosome 2.
ECEL1 is classified as a druggable target (Druggable Genome, Enzyme, Neutral Zinc Metallopeptidase, and Protease categories) with score 0.0.
Genetic testing for ECEL1 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 6 always present features, 6 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for distal arthrogryposis type 5D.
4 publications have been identified in PubMed for distal arthrogryposis type 5D. Research spans Case Report / Case Series (75%) and Epidemiology / Natural History (25%).
Begum J (2025). [PMID: 39681016](https://pubmed.ncbi.nlm.nih.gov/39681016/). *European journal of obstetrics, gynecology, and reproductive biology*. [Case Report / Case Series]
Hu W (2025). [PMID: 40372224](https://pubmed.ncbi.nlm.nih.gov/40372224/). *Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics*. [Case Report / Case Series]
Xu B (2025). [PMID: 40128796](https://pubmed.ncbi.nlm.nih.gov/40128796/). *Italian journal of pediatrics*. [Case Report / Case Series]
Endrakanti M (2024). [PMID: 38568023](https://pubmed.ncbi.nlm.nih.gov/38568023/). *American journal of medical genetics. Part A*. [Epidemiology / Natural History]
Data assembled from 6 of 12 sources · Last updated Sep 20, 2026, 8:40 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Bones and joints | 3 | Excessive inward curvature of the lower spine (hyperlordosis), Sideways curvature of the spine (scoliosis), Hypermobility of distal interphalangeal joints |
Head and neck | 2 | Round face, Cleft palate |
Pregnancy and birth | 1 | Congenital hip dislocation |
Growth and development | 1 | Short stature |
Eyes | 1 | Ptosis |