raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:178566

Mycosis fungoides and variants

Type
Clinical group
Group
Group of disorders
Inheritance
Not applicable
Age of onset
Adult
Status
active

A group of cutaneous T-cell lymphomas characterized by the indolent, slow progression of patches, plaques, and tumors. There are four known variants: classic mycosis fungoides, folliculotropic mycosis fungoides, localized pagetoid reticulosis and granulomatous slack skin. Classic MF is characterized by slow progression from patches on sun-protracted areas to more infiltrated plaques and tumors; folliculotropic MF preferentially involves the head and neck region; localized pagetoid reticulosis shows localized patches or plaques, usually involving one extremity; granulomatous slack skin is extremely rare and characterized by the presence of circumscribed areas of pendulous lax skin.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMycosis fungoides and variants
frMycosis fongoïde et variants
deMycosis fungoides-Varianten
esMicosis fungoide y variantes
itMicosi fungoide e varianti
nlMycosis fungoides en varianten
ptMicose fungóide e variantes
plZiarniniak grzybiasty i warianty
csMycosis fungoides a klinické varianty
ukФунгоїдні мікози та їх різновиди
zh蕈样真菌病及其变种
trMikoz fungoides ve çeşitleri

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C84.0Especificvalidated
ICD-112B01Especificvalidated
MONDO0015821Evalidated
MONDO15821Evalidated
UMLSC1513782Evalidated

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):

Children (4):

4

Genes

0 direct

Orphanet records no gene directly on this code.

5

Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-9 / 1 000 0000.59 / 100 000EuropeValue and classValidatedORPHANET
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