raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:451602

Primary cutaneous plasmacytosis

Type
Disease
Group
Disorder
Inheritance
Not applicable
Age of onset
Adult, Elderly
Status
active

A rare acquired skin disease characterized by benign proliferation of mature plasma cells with a typical triad of cutaneous lesions, polyclonal hypergammaglobulinemia, and superficial lymphadenopathy, without an apparent underlying cause. The skin lesions consist of multiple round-to-oval, red-to-dark-brown macules, papules, and plaques most commonly found on the trunk, but also the face, neck, and axillae.

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Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enPrimary cutaneous plasmacytosis
frPlasmocytose cutanée primitive
dePrimär kutane Plasmazytose
esPlasmocitosis cutánea primaria
itPlasmocitosi cutanea primitiva
nlPrimaire cutane plasmocytose
ptPlasmocitose cutânea primária
plPierwotna plazmacytoza skórna
csPrimární kožní plazmocytóza
ukПервинний шкірний плазмоцитоз
zh原发性皮肤浆细胞增多症
trPrimer kutanöz plazmasitoz

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10L98.6NTBTattributedvalidated
ICD-11EK91.2Especificvalidated
MONDO0018679Evalidated
UMLSC4736227Evalidated

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

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Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

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Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalence<1 / 1 000 000—WorldwideClass onlyValidatedORPHANET

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

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HPO phenotypes

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

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Sources for this card