raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:158019

Indeterminate cell histiocytosis

Synonyms: Indeterminate dendritic cell neoplasm · Indeterminate dendritic cell tumor

Type
Disease
Group
Disorder
Inheritance
Not applicable
Status
active

A rare neoplastic disease characterized by multiple, and on occasion single, asymptomatic, smooth, red-brown papulonodules located on the face, neck, trunk and/or extremities which present a nonepidermotrophic histiocytic infiltrate with immunohistochemical features of both Langerhans and non-Langerhans cells (i.e. immunopositive for S100 protein and CD1a in the absence of Birbeck granules and langerin expression).

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enIndeterminate cell histiocytosisIndeterminate dendritic cell neoplasm · Indeterminate dendritic cell tumor
frHistiocytose à cellule indeterminée
deHistiozytose der indeterminierten ZelleIndeterminante dendritische Zellneubildung · Indeterminanter dendritischer Zelltumor
esHistiocitosis de células indeterminadasNeoplasia indeterminada de células dendríticas · Tumor indeterminado de células dendríticas
itIstiocitosi a cellule indeterminate
nlOnbepaalde celhistiocytoseOnbepaald dendritische cel neoplasma · Onbepaalde dendritische celtumor
ptHistiocitose de células não-determinadas
plHistiocytoza z komórek nieokreślonych= en
csHistiocytóza z neurčených buněk= en
ukНевизначений гістіоцитоз клітинНевизначене новоутворення дендритних клітин · Невизначена дендритноклітинна пухлина
zh不确定细胞组织细胞增多症不明原因树突状细胞瘤
trBelirsiz hücreli histiyositozBelirsiz dendritik hücre tümörü · Belirsiz dendritik hücreli neoplazm

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C96.4NTBTattributedvalidated
ICD-112B31.6Especificvalidated
MONDO0015538Evalidated
UMLSC2825741Evalidated

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 (2):

No children.

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

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

7

Sources for this card