raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:450322

Polyclonal hyperviscosity syndrome

Type
Clinical syndrome
Group
Disorder
Inheritance
Not applicable
Age of onset
Adolescent, Adult, All ages, Elderly
Status
active

A rare hematologic disease characterized by high serum viscosity due to polyclonal expansion of immunoglobulins, most commonly in the context of Waldenström's macroglobulinemia, as well as a variety of disorders of immune dysregulation. Patients present with signs and symptoms involving multiple organs, such as bleeding diathesis, mucosal bleeding, retinal hemorrhage, headache, stroke, pulmonary hypertension, and congestive heart failure.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPolyclonal hyperviscosity syndrome
frSyndrome d'hyperviscosité polyclonale
dePolyklonales Hyperviskositätssyndrom
esSíndrome de hiperviscosidad policlonal
itSindrome da iperviscosità policlonale
nlPolyklonale hyperviscositeitssyndroom
ptSíndrome de hiperviscosidade policlonal
plZespół nadlepkości poliklonalnej
csPolyklonální hyperviskózní syndrom
ukСиндром поліклональної гіпервязкості
zh多克隆高粘度综合征
trPoliklonal hiperviskozite sendromu

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10D89.0NTBTattributedvalidated
MONDO0018678Evalidated
UMLSC5681102Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (1):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyNot yet validatedORPHANET

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

Orphanet has no HPO annotation for this code in this release.

7

Sources for this card