raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:52417

MALT lymphoma

Synonyms: Extranodal marginal zone B-cell lymphoma · MALToma · Mucosa-associated lymphatic tissue lymphoma · Mucosa-associated lymphoid tissue lymphoma

Type
Disease
Group
Disorder
Inheritance
Multigenic/multifactorial, Not applicable
Age of onset
Adult
Status
active

MALT (mucosa-associated lymphoid tissue) lymphoma is a rare form of malignant non-Hodgkin lymphoma that affects B cells and grows at the expense of lymphoid tissue associated with mucous membranes, but also occurs, more rarely, in lymph nodes.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMALT lymphomaExtranodal marginal zone B-cell lymphoma · MALToma · Mucosa-associated lymphatic tissue lymphoma · Mucosa-associated lymphoid tissue lymphoma
frLymphome MALTLymphome du tissu lymphoïde associé aux muqueuses · Lymphome extraganglionnaire de la zone marginale
deMALT-LymphomLymphom des mukosa-assoziierten lymphatischen Gewebes · MALTom · Marginalzonen-B-Zell-Lymphom vom MALT-Typ · Marginalzonen-Lymphom, extranodales
esLinfoma MALTLinfoma de tejido linfoide asociado a mucosa · Linfoma de tejido linfático asociado a mucosa · Linfoma extranodal de zona marginal · MALToma
itLinfoma MALTLinfoma del tessuto linfatico associato alle mucose · Linfoma del tessuto linfoide associato alle mucose · Linfoma della zona marginale extranodale · MALToma
nlMALT-lymfoomExtranodale marginale zone B-cellymfoom · MALToom · Mucosageassocieerd lymfatisch weefsellymfoom · Mucosageassocieerd lymfoïd weefsellymfoom
ptLinfoma MALT
plChłoniak MALTChłoniak tkanki limfatycznej związany z błoną śluzową · MALToma · Pozawęzłowy chłoniak strefy brzeżnej z komórek B
csMALT lymfomExtranodální B-lymfom z marginální zóny · MALTom · Lymfom z lymfatické tkáně se vztahem ke sliznicím
ukЛімфома MALTЕкстранодальна В-клітинна лімфома маргінальної зони · MALToma · Слизово-асоційована лімфома лімфатичної тканини · Лімфома лімфоїдної тканини, асоційована зі слизовою оболонкою
zhMALT淋巴瘤黏膜相关淋巴组织淋巴瘤
trMALT lenfomaMALToma · Ekstranodal marjinal bölge B hücreli lenfoma · Mukozayla ilişkili lenfoid doku lenfoması · Mukozayla ilişkili lenfatik doku lenfoması

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM137245Evalidated
ICD-10C88.4Especificvalidated
MONDO0007650Evalidated
UMLSC1850900Evalidated
GARD6485Evalidated
MedDRA10060707Evalidated

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

5 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
BCL10Part of a fusion gene inAssessedHGNC:989ENSG000001428676035171p22.3BCL10 immune signaling adaptor25922601[PMID]_10319863[PMID]
BIRC3Part of a fusion gene inAssessedHGNC:591ENSG0000002344560172111q22.2baculoviral IAP repeat containing 3
FOXP1Part of a fusion gene inAssessedHGNC:3823ENSG000001148616055153p13forkhead box P115703784[PMID]
IGHPart of a fusion gene inAssessedHGNC:547714691014q32.33immunoglobulin heavy locus15703784[PMID]
MALT1Part of a fusion gene inAssessedHGNC:6819ENSG0000017217560486018q21.32MALT1 paracaspase
5

Prevalence and incidence

3 records
TypeClassValueAreaQualificationValidationSource
Annual incidence1-9 / 1 000 0000.3 / 100 000EuropeValue and classValidated[EXPERT]_RARECARE surveillance of rare cancers in Europe[OTHER]
Annual incidence1-9 / 100 0001.59 / 100 000United StatesValue and classValidated22893605[PMID]_National Cancer OTHERitute[OTHER]
Point prevalence1-9 / 100 0004 / 100 000EuropeValue and classValidatedEuropean Medicines Agency 2013[OTHER]

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

17 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0001903Anemia
HP:0012191B-cell lymphoma
HP:0012378Fatigue
HP:0001945Fever
HP:0000975Hyperhidrosis
HP:0002017Nausea and vomiting
HP:0002113Pulmonary infiltrates
HP:0001824Weight loss
Frequent (79-30%)
HP:0002019Constipation
Occasional (29-5%)
HP:0002027Abdominal pain
HP:0000614Abnormal nasolacrimal system morphology
HP:0000820Abnormality of the thyroid gland
HP:0002716Lymphadenopathy
HP:0100721Mediastinal lymphadenopathy
HP:0012123Posterior uveitis
HP:0002205Recurrent respiratory infections
HP:0000505Visual impairment

Run the differential on the 8 obligate / very frequent terms

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Sources for this card