raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:391723

Mucinous adenocarcinoma of the appendix

Synonyms: Appendiceal mucinous adenocarcinoma

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

Mucinous adenocarcinoma of the appendix is a very rare, slow growing, well-differentiated epithelial neoplasm of the appendix characterized by abundant mucin production. Clinically, it presents as acute appendicitis (with abdominal pain, fever, leukocytosis) or as pseudomyxoma peritonei (wide-spread presence of mucin within the peritoneal cavity), however some patients may be completely asymptomatic at the time of diagnosis. In many cases, a second gastrointestinal malignancy is present.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enMucinous adenocarcinoma of the appendixAppendiceal mucinous adenocarcinoma
frAdénocarcinome mucineux de l'appendiceAdénocarcinome mucineux appendiculaire
deMuzinöses Adenokarzinom des Appendix
esAdenocarcinoma mucinoso del apéndiceAdenocarcinoma mucinoso apendicular
itAdenocarcinoma mucinoso dell'appendiceAdenocarcinoma mucinoso appendicolare
nlMucineus adenocarcinoom van appendixAppendiculair muceus adenocarcinoom
ptAdenocarcinoma mucinoso do apêndice
plRakowiak gruczołowy śluzowy wyrostka robaczkowegoRakowiak gruczołowy śluzowy wyrostka robaczkowego
csMucinózní adenokarcinom apendixuApendikální mucinózní adenokarcinom
ukМуцинозна аденокарцинома апендиксаМуцинозна аденокарцинома апендикса
zh阑尾粘液腺癌阑尾粘液性腺癌
trApendiksin müsinöz adenokarsinomuApandise ait müsinöz adenokarsinom

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C18.1NTBTattributedvalidated
ICD-112B81.00Especificvalidated
MONDO0018330Evalidated
UMLSC1706832Evalidated
MedDRA10073361Evalidated

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):

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