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The Immunodeficiency, Centromeric region instability, Facial anomalies syndrome (ICF) is a rare autosomal recessive disease characterized by immunodeficiency, although B cells are present, and by characteristic rearrangements in the vicinity of the centromeres (the juxtacentromeric heterochromatin) of chromosomes 1 and 16 and sometimes 9.
No HPO annotations are available for this condition.
Facioscapulohumeral muscular dystrophy (FSHD) is characterized by progressive muscle weakness involving the face, shoulder girdle, upper arm, lower leg (peroneal muscles), and hip girdle in later stages . Asymmetry of facial, limb, and shoulder weakness is common . Typically, individuals with FSHD become symptomatic in their teens, but age of onset is variable . Earlier onset is associated with more progression. Individuals with severe infantile FSHD have muscle weakness at birth. In contrast, some individuals remain asymptomatic throughout their lives. Progression is usually slow; however, many affected individuals describe a stuttering course with periods of disease inactivity followed by periods of rapid deterioration. Eventually 20% of affected individuals require a wheelchair.
Evidence-based guidelines for diagnosis of facioscapulohumeral muscular dystrophy (FSHD) are available .
FSHD should be suspected in individuals with the following:
Weakness that predominantly involves the facial, scapular stabilizer, and/or foot dorsiflexor muscles without associated ocular or bulbar muscle weakness. Weakness is often asymmetric.
No approved treatments are currently available for immunodeficiency-centromeric instability-facial anomalies syndrome. The disease remains an area of unmet medical need.
Clinical practice guidelines for facioscapulohumeral muscular dystrophy (FSHD) have been published .
To establish the extent of disease and needs in an individual diagnosed with FSHD, the evaluations summarized (if not performed as part of the evaluation that led to the diagnosis) are recommended.
To monitor existing manifestations, the individual's response to supportive care, and the emergence of new manifestations, the evaluations summarized in are recommended. Table 6. Facioscapulohumeral Muscular Dystrophy: Recommended Surveillance
No clinical trials have been registered for immunodeficiency-centromeric instability-facial anomalies syndrome.
27 publications have been identified in PubMed for immunodeficiency-centromeric instability-facial anomalies syndrome. Research spans Basic Science / Preclinical (48%), Case Report / Case Series (26%), and Review / Meta-Analysis (15%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 13 | 48% |
Data assembled from 4 of 12 sources · Last updated Oct 4, 2026, 12:13 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
Prior diagnosis with inflammatory myopathy that is refractory to immunosuppression
Family history of FSHD is most often consistent with autosomal dominant inheritance (e.g., affected males and females in multiple generations).
Serum concentration of creatine kinase (CK) is normal to elevated in individuals with FSHD and usually does not exceed three to five times the upper ...
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
Genetic disorders that are similar clinically to facioscapulohumeral muscular dystrophy (FSHD) are listed in . Table 3. Genetic Disorders of Interest in the Differential Diagnosis of Facioscapulohumeral Muscular Dystrophy
Gene(s) | Disorder | MOI |
|---|---|---|
35 genes incl:ANO5CAPN3DYSF | Limb-girdle muscular dystrophy (OMIM PS603511 PS253600) | ADAR |
350 genes1 | Mitochondrial myopathies (See Primary Mitochondrial Disorders Overview.) | ADARXLMT BAG3 CRYAB DES FLNC HSPB8 KY LDB3 MYL2 MYOT PYROXD1 SVIL TTN |
UNC45B | Myofibrillar myopathy (OMIM PS601419) | ADAR |
CNBP | Myotonic dystrophy type 2 (proximal myotonic myopathy [PROMM]) | AD DMPK |
GAA | Late-onset Pompe Disease | AR |
GNE | GNE myopathy (inclusion body myopathy type 2) | AR AD = autosomal dominant; AR = autosomal recessive; FSHD = facioscapulohumeral muscular dystrophy; MOI = mode of inheritance; MT = mitochondrial; XL = X-linked 1. |
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
Table 4.
Facioscapulohumeral Muscular Dystrophy: Recommended Evaluations Following Initial Diagnosis
System/Concern | Evaluation | Comment
| Physical exam | To assess strength functional limitations
Eval for PT need for assistive devices |
Pain assessment |
| OT speech therapy assessment | In persons w/infantile onset
| • Eval for hypoventilation
Screen for daytime somnolence, nonrestorative sleep
| • Baseline PFTs
Low threshold for pulmonary/sleep eval if abnormal PFTs or sleep symptoms
| Ophthalmologic eval | • In persons w/large pathogenic contraction of D4Z4 (D4Z4 fragments of 10-20 kb) or visual symptoms
For presence of retinal vasculopathy
| Assessment of hearing | • In all affected infants children
In adults w/symptomatic hearing loss
| By genetics professionals1 | To obtain a pedigree inform affected persons their families re nature, MOI, implications of FSHD to facilitate medical personal decision making
FSHD = facioscapulohumeral muscular dystrophy; MOI = mode of inheritance; OT = occupational therapy; PFT = pulmonary function test; PT = physical therapy
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
Genetic treatments such as siRNA treatment to silence DUX4 are being studied, as is an epigenic 4q35 silencing treatment delivered by adenovirus, EPI-321. Losmapimod, an inhibitor of p38/ mitogen-activated protein kinase (MAPK), resulted in improved reachable workspace and strength in both treatment and placebo groups. A monoclonal antibody to myostatin is in Phase II trials. Search ClinicalTrials.gov in the US and EU Clinical Trials Register in Europe for information on clinical studies for a wide range of diseases and conditions.
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
View trials for immunodeficiency-centromeric instability-facial anomalies syndrome
Evaluation |
|---|
Frequency |
|---|
Musculoskeletal | PT assessment | Annually or more frequently as determined by disease severity Pain assessment |
Respiratory | Screening for hypoventilation | At each visit for persons w/abnormal PFTs, severe proximal weakness, kyphoscoliosis, wheelchair dependence, or comorbid disease affecting ventilation Pulmonary consultation |
Ophthalmologic | Dilated ophthalmoscopy | Annually in those w/large pathogenic contraction of D4Z4 (D4Z4 fragments of 10-20 kb); In adults only if visual symptoms develop |
Audiology | Audiometry | At each visit in infants w/early-onset FSHD; Annually in children until starting school; In adults only if symptoms of hearing loss reported |
Cardiology | Cardiac eval | If overt signs or symptoms of cardiac disease (regular screening not required) FSHD = facioscapulohumeral muscular dystrophy; FVC = forced vital capacity; OT = occupational therapy; PCP = primary care physician; PFT = pulmonary function test; PT = physical therapy/therapist |
Source: GeneReviews — "Facioscapulohumeral Muscular Dystrophy"
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
Patient case studies |
7 |
26% |
Research summaries | 4 | 15% |
Other research | 1 | 4% |
Clinical study results | 1 | 4% |
Disease patterns and progression | 1 | 4% |
Martins-Ferreira R (2026). [PMID: 42170592](https://pubmed.ncbi.nlm.nih.gov/42170592/). *J Hum Immun*. [Review / Meta-Analysis]
Jans D (2026). [PMID: 41972176](https://pubmed.ncbi.nlm.nih.gov/41972176/). *Front Immunol*. [Review / Meta-Analysis]
Chen F (2026). [PMID: 42234582](https://pubmed.ncbi.nlm.nih.gov/42234582/). *Nucleic Acids Res*. [Basic Science / Preclinical]
Gao J (2026). [PMID: 41859080](https://pubmed.ncbi.nlm.nih.gov/41859080/). *Frontiers in immunology*. [Case Report / Case Series]
Liu B (2026). [PMID: 42140430](https://pubmed.ncbi.nlm.nih.gov/42140430/). *J Biol Chem*. [Basic Science / Preclinical]
Givol O (2026). [PMID: 41359419](https://pubmed.ncbi.nlm.nih.gov/41359419/). *Human molecular genetics*. [Basic Science / Preclinical]
Long Y (2025). [PMID: 39958354](https://pubmed.ncbi.nlm.nih.gov/39958354/). *Frontiers in immunology*. [Case Report / Case Series]
Roark CM (2025). [PMID: 40103177](https://pubmed.ncbi.nlm.nih.gov/40103177/). *Clinical and experimental immunology*. [Case Report / Case Series]
Joma R (2025). [PMID: 40585468](https://pubmed.ncbi.nlm.nih.gov/40585468/). *Oxford medical case reports*. [Case Report / Case Series]
Wang S (2025). [PMID: 41370347](https://pubmed.ncbi.nlm.nih.gov/41370347/). *Proceedings of the National Academy of Sciences of the United States of America*. [Basic Science / Preclinical]