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Features include very common findings: Abnormality of the ovary, Short neck, Delayed puberty, and Increased circulating gonadotropin level and others; and common findings: Hypoplastic toenails, Glucose intolerance, Low posterior hairline, and High, narrow palate and others. 100 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Bones and joints | 9 | Excessive outward curvature of the upper spine (kyphosis), Enlargement of the distal femoral epiphysis, Mild bone density loss (osteopenia) |
Biomarker and diagnostic research for mosaic monosomy X has been reported in the published literature.
Phenotype severity distribution: 21 very common features, 37 common features.
No clinical trials have been registered for mosaic monosomy X.
47 publications have been identified in PubMed for mosaic monosomy X. Research spans Case Report / Case Series (30%), Basic Science / Preclinical (26%), and Diagnostic / Biomarker (19%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 14 | 30% |
Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 7:49 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Skin | 7 | Dermatoglyphic ridges abnormal, Thickened nuchal skin fold, Abnormal dermatoglyphics |
Arms and legs | 6 | Hypoplastic toenails, Hypermobility of toe joints, Abnormal fingernail morphology |
Hormones | 6 | Delayed puberty, Female infertility, Primary amenorrhea |
Brain and nerves | 6 | Atypical behavior, Anxiety, Abnormal nonverbal communicative behavior |
Heart and blood vessels | 5 | Aortic arch aneurysm, Hypertension, Atrial septal defect |
Growth and development | 5 | Growth delay, Intrauterine growth retardation, Short stature |
Digestive system | 4 | Elevated circulating hepatic transaminase concentration, Hepatic steatosis, Liver scarring (fibrosis) (hepatic fibrosis) |
Head and neck | 3 | High, narrow palate, High palate, Aplasia/Hypoplasia of the mandible |
Kidneys and urinary system | 3 | High urinary gonadotropin level, Horseshoe kidney, Ectopic kidney |
Ears | 2 | Hearing loss (hearing impairment), Recurrent otitis media |
Eyes | 2 | Strabismus, Ptosis |
Lab test results | 1 | Elevated circulating hepatic transaminase concentration |
Blood and immune system | 1 | Autoimmunity |
Pregnancy and birth | 1 | Numerous congenital melanocytic nevi |
12 |
26% |
Testing and diagnosis research | 9 | 19% |
Disease patterns and progression | 9 | 19% |
Research summaries | 2 | 4% |
Clinical study results | 1 | 2% |
Nie Y (2026). [PMID: 41820841](https://pubmed.ncbi.nlm.nih.gov/41820841/). *BMC Genomics*. [Basic Science / Preclinical]
Dai H (2026). [PMID: 41885303](https://pubmed.ncbi.nlm.nih.gov/41885303/). *Psychiatr Genet*. [Case Report / Case Series]
Iordanescu II (2026). [PMID: 41751555](https://pubmed.ncbi.nlm.nih.gov/41751555/). *Genes*. [Case Report / Case Series]
Cheng Y (2026). [PMID: 41805462](https://pubmed.ncbi.nlm.nih.gov/41805462/). *Climacteric*. [Epidemiology / Natural History]
Miyamoto W (2026). [PMID: 40010745](https://pubmed.ncbi.nlm.nih.gov/40010745/). *The Tohoku journal of experimental medicine*. [Diagnostic / Biomarker]
Arnold AP (2026). [PMID: 41723549](https://pubmed.ncbi.nlm.nih.gov/41723549/). *Biology of sex differences*. [Basic Science / Preclinical]
Glendening AM (2026). [PMID: 41042102](https://pubmed.ncbi.nlm.nih.gov/41042102/). *G3 (Bethesda, Md.)*. [Basic Science / Preclinical]
Doğan Arı AB (2026). [PMID: 42230379](https://pubmed.ncbi.nlm.nih.gov/42230379/). *Eur J Pediatr*. [Review / Meta-Analysis]
Ogamba-Alphonso I (2026). [PMID: 42015930](https://pubmed.ncbi.nlm.nih.gov/42015930/). *Am J Perinatol*. [Diagnostic / Biomarker]
Sinha S (2026). [PMID: 41500704](https://pubmed.ncbi.nlm.nih.gov/41500704/). *BMJ case reports*. [Case Report / Case Series]