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A congenital malformation of the external ear and the most extreme form of microtia characterized by the complete absence of the external ear and auditory canal, conductive hearing loss, attention deficit disorders and delayed language development.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
1 clinical trial registered, 1 recruiting. Interventions under study include procedural interventions. Pipeline includes 1 NA. Research is primarily sponsored by academic and government institutions.
24 publications have been identified in PubMed for anotia. Research spans Review / Meta-Analysis (25%), Epidemiology / Natural History (25%), and Clinical Trial Publication (21%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 6 | 25% |
Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 7:47 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Disease patterns and progression |
6 |
25% |
Clinical study results | 5 | 21% |
Laboratory research | 3 | 13% |
Other research | 2 | 8% |
Patient case studies | 2 | 8% |
Ryu JY (2026). [PMID: 42074800](https://pubmed.ncbi.nlm.nih.gov/42074800/). *J Clin Med*. [Epidemiology / Natural History]
Lin Y (2026). [PMID: 39846418](https://pubmed.ncbi.nlm.nih.gov/39846418/). *Cleft Palate Craniofac J*. [Review / Meta-Analysis]
Andrews J (2026). [PMID: 33085390](https://pubmed.ncbi.nlm.nih.gov/33085390/). *Unknown Journal*. [Other]
Georgakopoulos B (2026). [PMID: 31424840](https://pubmed.ncbi.nlm.nih.gov/31424840/). *Unknown Journal*. [Epidemiology / Natural History]
Li K (2026). [PMID: 40663787](https://pubmed.ncbi.nlm.nih.gov/40663787/). *Plast Reconstr Surg*. [Clinical Trial Publication]
Hu KG (2026). [PMID: 40101258](https://pubmed.ncbi.nlm.nih.gov/40101258/). *Cleft Palate Craniofac J*. [Clinical Trial Publication]
Park C (2026). [PMID: 40690331](https://pubmed.ncbi.nlm.nih.gov/40690331/). *Plast Reconstr Surg*. [Clinical Trial Publication]
Meng X (2025). [PMID: 41143892](https://pubmed.ncbi.nlm.nih.gov/41143892/). *Hum Genet*. [Clinical Trial Publication]
You P (2025). [PMID: 40602822](https://pubmed.ncbi.nlm.nih.gov/40602822/). *CMAJ*. [Review / Meta-Analysis]
Yang Y (2025). [PMID: 41266119](https://pubmed.ncbi.nlm.nih.gov/41266119/). *Occup Environ Med*. [Basic Science / Preclinical]