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Scleromyxedema is a rare, severe skin disorder. Signs and symptoms include abnormal accumulation of mucin in the skin (mucinosis), causing papular and sclerodermoid bumps; increased production of fibroblasts (connective tissue cells) in the absence of a thyroid disorder; and monoclonal gammopathy (abnormal proteins in the blood). It often involves internal organs and may affect various body systems. The cause of scleromyxedema is not known. There is no standard treatment. Management may involve the use of intravenous immunoglobulin (IVIG), plasmapheresis, thalidomide and corticoids, or more aggressive interventions, such as autologous bone marrow transplantation.
Features include very common findings: Generalized abnormality of skin, Abnormal protein in the blood (paraproteinemia), and Papule; and common findings: Abnormality of the face, Abnormality of the neck, Thickened skin, and Hand abnormalities (abnormality of the hand) and others. 40 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Skin | 6 | Generalized abnormality of skin, Papule, Thickened skin |
Phenotype severity distribution: 3 very common features, 14 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for scleromyxedema.
43 publications have been identified in PubMed for scleromyxedema. Research spans Case Report / Case Series (63%), Review / Meta-Analysis (28%), and Clinical Trial Publication (5%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 25 | 63% |
Data assembled from 4 of 12 sources · Last updated Sep 19, 2026, 1:58 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Brain and nerves | 5 | Difficulty swallowing (dysphagia), Seizure, Encephalopathy |
Muscles | 5 | Myopathy, Proximal muscle weakness, Distal muscle weakness |
Heart and blood vessels | 4 | Abnormality of the cardiovascular system, Stroke, Transient ischemic attack |
Lab test results | 3 | Abnormal protein in the blood (paraproteinemia), Elevated creatine kinase (muscle enzyme) (elevated circulating creatine kinase concentration), Multiple myeloma |
Digestive system | 3 | Difficulty swallowing (dysphagia), Gastroesophageal reflux, Abnormality of the gastrointestinal tract |
Lungs and breathing | 3 | Abnormal lung morphology, Exertional dyspnea, Abnormal pulmonary artery morphology |
Bones and joints | 2 | Arthralgia, Abnormal skeletal muscle morphology |
Head and neck | 1 | Abnormality of the face |
Arms and legs | 1 | Hand abnormalities (abnormality of the hand) |
Kidneys and urinary system | 1 | Abnormality of the kidney |
11 |
28% |
Clinical study results | 2 | 5% |
Other research | 1 | 3% |
New treatment approaches | 1 | 3% |
Ajmani A (2026). [PMID: 41675018](https://pubmed.ncbi.nlm.nih.gov/41675018/). *JAAD Case Rep*. [Case Report / Case Series]
Wijaya D (2026). [PMID: 41766765](https://pubmed.ncbi.nlm.nih.gov/41766765/). *Case Rep Oncol Med*. [Case Report / Case Series]
Baiges AF (2026). [PMID: 41362867](https://pubmed.ncbi.nlm.nih.gov/41362867/). *JAAD Case Rep*. [Case Report / Case Series]
Mir TH (2026). [PMID: 41740896](https://pubmed.ncbi.nlm.nih.gov/41740896/). *J Am Acad Dermatol*. [Other]
Peri K (2026). [PMID: 41625143](https://pubmed.ncbi.nlm.nih.gov/41625143/). *SAGE Open Med Case Rep*. [Case Report / Case Series]
Soontrapa P (2025). [PMID: 40921022](https://pubmed.ncbi.nlm.nih.gov/40921022/). *Neurology*. [Review / Meta-Analysis]
Kalantari Y (2025). [PMID: 41030177](https://pubmed.ncbi.nlm.nih.gov/41030177/). *J Dtsch Dermatol Ges*. [Review / Meta-Analysis]
Rogowska J (2025). [PMID: 39777523](https://pubmed.ncbi.nlm.nih.gov/39777523/). *Rheumatol Int*. [Review / Meta-Analysis]
Willett KL (2025). [PMID: 37910641](https://pubmed.ncbi.nlm.nih.gov/37910641/). *Retin Cases Brief Rep*. [Case Report / Case Series]
Berk-Krauss J (2025). [PMID: 40466947](https://pubmed.ncbi.nlm.nih.gov/40466947/). *J Am Acad Dermatol*. [Review / Meta-Analysis]