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Acromegaloid facial appearance (AFA) syndrome is a multiple congenital anomalies/dysmorphic syndrome with a probable autosomal dominant inheritance, characterized by a progressively coarse acromegaloid-like facial appearance with thickening of the lips and intraoral mucosa, large and doughy hands and, in some cases, developmental delay. AFA syndrome appears to be part of a phenotypic spectrum that includes hypertrichotic osteochondrodysplasia, Cantu type and hypertrichosis-acromegaloid facial appearance syndrome.
Features include always present findings: Sloping forehead, Thick nasal alae, Deep philtrum, and Thickened calvaria and others; and very common findings: Large hands and Thick vermilion border. 18 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Arms and legs | 2 | Large hands, Tapered finger |
Phenotype severity distribution: 9 always present features, 2 very common features, 1 common feature.
No clinical trials have been registered for acromegaloid facial appearance syndrome.
3 publications have been identified in PubMed for acromegaloid facial appearance syndrome. Research spans Case Report / Case Series (67%) and Basic Science / Preclinical (33%).
Fatollahzadeh M (2025). [PMID: 40917564](https://pubmed.ncbi.nlm.nih.gov/40917564/). *Journal of diabetes and metabolic disorders*. [Case Report / Case Series]
Nygren D (2025). [PMID: 40236613](https://pubmed.ncbi.nlm.nih.gov/40236613/). *JCEM case reports*. [Case Report / Case Series]
Rajan R (2024). [PMID: 39550450](https://pubmed.ncbi.nlm.nih.gov/39550450/). *Scientific reports*. [Basic Science / Preclinical]
Data assembled from 5 of 12 sources · Last updated Oct 3, 2026, 8:13 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about acromegaloid facial appearance syndrome
Brain and nerves
2 |
Specific learning disability, Intellectual disability |
Bones and joints | 1 | Joint hypermobility |