raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:100025

Alpha-heavy chain disease

Synonyms: Immunoproliferative small intestinal disease · Mediterranean lymphoma · Alpha-HCD · IPSID

Type
Clinical subtype
Group
Subtype of disorder
Age of onset
Adolescent, Adult
Status
active

A type of HCD characterized by the production of incomplete monoclonal alpha-heavy chains without associated light chains. Alpha-HCD is considered to be a subtype of immunoproliferative small intestinal disease (IPSID). The clinical presentation includes chronic diarrhea with evidence of malabsorption.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enAlpha-heavy chain diseaseImmunoproliferative small intestinal disease · Mediterranean lymphoma · Alpha-HCD · IPSID
frMaladie des chaînes lourdes alphaAlpha-HCD · IPSID · Lymphome méditerranéen · Maladie immunoproliférative de l'intestin grêle
deAlpha-SchwerkettenkrankheitAlpha-HCD · IPSID · Immunoproliferative Erkrankung des Dünndarms · Mediterranes Lymphom
esEnfermedad de cadenas pesadas alfaAlfa-HCD · Enfermedad inmunoproliferativa del intestino delgado · IPSID · Linfoma mediterráneo
itMalattia delle catene pesanti alfaAlfa-HCD · IPSID · Linfoma mediterraneo · Malattia immunoproliferativa dell'intestino tenue
nlAlfa-zwareketenziekteAlfa-HCD · IPSID · Immunoproliferatieve ziekte van dunne darm · Mediterraan lymfoom
ptDoença da cadeia pesada alfa
plChoroba łańcuchów ciężkich alfaAlfa-HCD · Chłoniak śródziemnomorski · Immunoproliferacyjna choroba jelita cienkiego · IPSID
csNemoc z těžkých řetězců alfaAlfa HCD · IPSID · Imunoproliferativní nemoc tenkého střeva · Středomořský lymfom
ukХвороба важких ланцюгів АльфаАльфа-HCD · Імунопроліферативні захворювання тонкої кишки · IPSID · Середземноморська лімфома
zhα重链病免疫增殖性小肠疾病
trAlfa-ağır zincir hastalığıIPSID · Alpha-HCD · Akdeniz lenfoması · İmmünoproliferatif ince bağırsak hastalığı

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C88.3NTBTinclusionvalidated
ICD-112A84.0Especificvalidated
ICD-11XH1Y65Especificvalidated
MONDO0015045Evalidated
MeSHD007161Evalidated
UMLSC0021071Evalidated

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 (1):

No children.

Codes that Orphanet moved or referred to this one:

4

Genes

0 direct

Orphanet records no gene directly on this code.

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Prevalence and incidence

2 records
TypeClassValueAreaQualificationValidationSource
Cases/families400 casesWorldwideCase(s)Validated[EXPERT]
Point prevalenceUnknown—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.

6

HPO phenotypes

15 annotations · validated 2016-06-01
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002244Abnormality of the small intestine
HP:0002961Dysgammaglobulinemia
HP:0002024Malabsorption
Frequent (79-30%)
HP:0002027Abdominal pain
HP:0001903Anemia
HP:0002901Hypocalcemia
HP:0002721Immunodeficiency
Occasional (29-5%)
HP:0001596Alopecia
HP:0001541Ascites
HP:0001945Fever
HP:0001510Growth delay
HP:0002240Hepatomegaly
HP:0002716Lymphadenopathy
HP:0002665Lymphoma
HP:0001744Splenomegaly

Run the differential on the 3 obligate / very frequent terms

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Sources for this card