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Simple (monoclonal) cryoglobulinemia or type I cryoglobulinemia refers to the presence in the serum of one isotype or subclass of immunoglobulin (Ig) that precipitates reversibly below 37°C.
Features include very common findings: Purpura, Abnormality of blood and blood-forming tissues, and Cold urticaria; and common findings: Unexplained fevers, Increased circulating IgM level, Acral ulceration, and Distal peripheral sensory neuropathy and others. 55 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 9 | Cranial nerve paralysis, Distal peripheral sensory neuropathy, Nerve damage affecting sensation and movement (sensorimotor neuropathy) |
Biomarker and diagnostic research for simple cryoglobulinemia has been reported in the published literature.
Phenotype severity distribution: 3 very common features, 12 common features.
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for simple cryoglobulinemia.
27 publications have been identified in PubMed for simple cryoglobulinemia. Research spans Case Report / Case Series (59%), Epidemiology / Natural History (15%), and Diagnostic / Biomarker (11%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 16 | 59% |
Data assembled from 4 of 12 sources · Last updated Sep 18, 2026, 7:13 PM UTC
European rare disease database
Kidneys and urinary system | 7 | Abnormality of the kidney, Reduced kidney function (renal insufficiency), Protein in the urine (proteinuria) |
Heart and blood vessels | 6 | Hypertension, Stroke, Abnormal heart morphology |
Lab test results | 5 | Monoclonal elevation of circulating IgA, Abnormal protein in the blood (paraproteinemia), Monoclonal immunoglobulin M proteinemia |
Digestive system | 4 | Viral hepatitis, Abnormality of the gastrointestinal tract, Abdominal pain |
Blood and immune system | 3 | Abnormality of blood and blood-forming tissues, Vasculitis, B-cell lymphoma |
Skin | 3 | Cold urticaria, Localized skin lesion, Vascular skin abnormality |
Bones and joints | 2 | Joint inflammation (arthritis), Arthralgia |
Metabolism | 1 | Unexplained fevers |
Growth and development | 1 | Weight loss |
Nervous system (morphological) | 1 | Morphological central nervous system abnormality |
Lungs and breathing | 1 | Abnormal lung morphology |
4 |
15% |
Testing and diagnosis research | 3 | 11% |
Other research | 1 | 4% |
Research summaries | 1 | 4% |
Clinical study results | 1 | 4% |
New treatment approaches | 1 | 4% |
Natali P (2026). [PMID: 42208754](https://pubmed.ncbi.nlm.nih.gov/42208754/). *Clin Biochem*. [Diagnostic / Biomarker]
Dornadic M (2026). [PMID: 41999488](https://pubmed.ncbi.nlm.nih.gov/41999488/). *J Neurol*. [Other]
Yang Y (2026). [PMID: 41943594](https://pubmed.ncbi.nlm.nih.gov/41943594/). *Renal failure*. [Epidemiology / Natural History]
Jin X (2026). [PMID: 42183277](https://pubmed.ncbi.nlm.nih.gov/42183277/). *Front Immunol*. [Case Report / Case Series]
Ferri C (2026). [PMID: 41798958](https://pubmed.ncbi.nlm.nih.gov/41798958/). *Frontiers in immunology*. [Review / Meta-Analysis]
Duan ZY (2025). [PMID: 40491909](https://pubmed.ncbi.nlm.nih.gov/40491909/). *Frontiers in immunology*. [Case Report / Case Series]
Ouanjine A (2025). [PMID: 40741572](https://pubmed.ncbi.nlm.nih.gov/40741572/). *Cureus*. [Case Report / Case Series]
Elthes BZ (2025). [PMID: 40210820](https://pubmed.ncbi.nlm.nih.gov/40210820/). *Digestive diseases and sciences*. [Epidemiology / Natural History]
Al-Saedi ZS (2025). [PMID: 40842816](https://pubmed.ncbi.nlm.nih.gov/40842816/). *Cureus*. [Case Report / Case Series]
Yeboah EK (2025). [PMID: 40688998](https://pubmed.ncbi.nlm.nih.gov/40688998/). *Cureus*. [Case Report / Case Series]
AI-curated news mentioning simple cryoglobulinemia
Updated Feb 11, 2026
A recent study highlights a rare complication of cryoglobulinemia, specifically a pseudoaneurysm of the superior gluteal artery. This discovery adds to the understanding of vascular complications associated with this condition.