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Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for polyclonal hyperviscosity syndrome.
1 publication has been identified in PubMed for polyclonal hyperviscosity syndrome. Research spans Case Report / Case Series (100%).
Marahrens L (2024). [PMID: 39507158](https://pubmed.ncbi.nlm.nih.gov/39507158/). *Cureus*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 18, 2026, 1:44 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
AI-curated news mentioning polyclonal hyperviscosity syndrome
Updated Aug 25, 2026
A case study highlights hyperviscosity syndrome as a rare manifestation of immunoglobulin G kappa smoldering multiple myeloma, effectively treated with daratumumab. This finding contributes to the understanding of treatment options for this rare presentation.