raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:440437

Familial colorectal cancer Type X

Synonyms: FCCTX

Type
Disease
Group
Disorder
Inheritance
Autosomal dominant
Age of onset
Adult, Elderly
Status
active

A rare inherited cancer-predisposing syndrome characterized by the fulfilment of the Amsterdam criteria for hereditary nonpolyposis colorectal cancer (HNPCC) but without alterations, either somatic or germline, in the DNA mismatch repair (MMR) genes.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enFamilial colorectal cancer Type XFCCTX
frCancer colorectal familial type X= en
deFamiliäres kolorektales Karzinom Typ XFCCTX · Familiäres Kolonkarzinom Typ X
esCáncer colorrectal familiar tipo XCCRFX · FCCTX
itTumore colorettale familiare tipo X= en
nlFamiliale colorectale kanker type X= en
ptCancro colorectal familiar, tipo X
plRodzinny rak jelita grubego typu X= en
csFamiliární kolorektální karcinom, typ X= en
ukСімейний колоректальний рак, тип X= en
zhX型家族性大肠癌= en
trailesel kolorektal kanser Tip X= en

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
ICD-10C18.0BTNTattributedvalidated
ICD-10C18.1BTNTattributedvalidated
ICD-10C18.2BTNTattributedvalidated
ICD-10C18.3BTNTattributedvalidated
ICD-10C18.4BTNTattributedvalidated
ICD-10C18.5BTNTattributedvalidated
ICD-10C18.6BTNTattributedvalidated
ICD-10C18.7BTNTattributedvalidated
ICD-112B90.YNTBTattributedvalidated
MONDO0018604Evalidated
UMLSC3896578Evalidated

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

10 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ATMDisease-causing germline mutation(s) inAssessedHGNC:795ENSG0000014931160758511q22.3ATM serine/threonine kinase36370464[PMID]
BMPR1ADisease-causing germline mutation(s) inAssessedHGNC:1076ENSG0000010777960129910q23.2bone morphogenetic protein receptor type 1A21640116[PMID]
BRCA2Disease-causing germline mutation(s) inAssessedHGNC:1101ENSG0000013961860018513q13.1BRCA2 DNA repair associated36370464[PMID]
CHEK2Disease-causing germline mutation(s) inAssessedHGNC:16627ENSG0000018376560437322q12.1checkpoint kinase 217106448[PMID]
MUTYHDisease-causing germline mutation(s) inAssessedHGNC:7527ENSG000001327816049331p34.1mutY DNA glycosylase24691292[PMID]_23007840[PMID]
NPATDisease-causing germline mutation(s) inAssessedHGNC:7896ENSG0000014930860144811q22.3nuclear protein, coactivator of histone transcription38778081[PMID]
POLD1Disease-causing germline mutation(s) inAssessedHGNC:9175ENSG0000006282217476119q13.33DNA polymerase delta 1, catalytic subunit28306219[PMID]
POLEDisease-causing germline mutation(s) inAssessedHGNC:9177ENSG0000017708417476212q24.33DNA polymerase epsilon, catalytic subunit23263490[PMID]_36370464[PMID]
RPS20Disease-causing germline mutation(s) inAssessedHGNC:10405ENSG000000089886036828q12.1ribosomal protein S2024941021[PMID]
SEMA4ADisease-causing germline mutation(s) inAssessedHGNC:10729ENSG000001961896072921q22semaphorin 4A25307848[PMID]
5

Prevalence and incidence

0 records

No prevalence record in this release.

6

HPO phenotypes

53 annotations · validated 2018-12-20
HPOTerm (as annotated by Orphanet)Diagnostic
Very frequent (99-80%)
HP:0002027Abdominal pain
HP:0002019Constipation
HP:0012378Fatigue
HP:0012174Glioblastoma multiforme
HP:0002024Malabsorption
HP:0001824Weight loss
Frequent (79-30%)
HP:0000739Anxiety
HP:0007018Attention deficit hyperactivity disorder
HP:0000708Atypical behavior
HP:0000716Depression
HP:0002239Gastrointestinal hemorrhage
HP:0001276Hypertonia
HP:0001252Hypotonia
HP:0002516Increased intracranial pressure
HP:0000737Irritability
HP:0002076Migraine
HP:0002017Nausea and vomiting
HP:0100743Neoplasm of the rectum
HP:0001250Seizure
Occasional (29-5%)
HP:0007256Abnormal pyramidal sign
HP:0012113Abnormality of creatine metabolism
HP:0002167Abnormality of speech or vocalization
HP:0010524Agnosia
HP:0100576Amaurosis fugax
HP:0002671Basal cell carcinoma
HP:0100835Benign neoplasm of the central nervous system
HP:0100571Cardiac diverticulum
HP:0002376Developmental regression
HP:0001260Dysarthria
HP:0010526Dysgraphia
HP:0100660Dyskinesia
HP:0001371Flexion contracture
HP:0001288Gait disturbance
HP:0000738Hallucinations
HP:0004374Hemiplegia/hemiparesis
HP:0001402Hepatocellular carcinoma
HP:0002354Memory impairment
HP:0100273Neoplasm of the colon
HP:0002894Neoplasm of the pancreas
HP:0010622Neoplasm of the skeletal system
HP:0100031Neoplasm of the thyroid gland
HP:0003006Neuroblastoma
HP:0006725Pancreatic adenocarcinoma
HP:0003401Paresthesia
HP:0002893Pituitary adenoma
HP:0010786Urinary tract neoplasm
HP:0001123Visual field defect
HP:0000505Visual impairment
Very rare (<4-1%)
HP:0012126Stomach cancer
HP:0010784Uterine neoplasm
Excluded (0%)
HP:0100013Neoplasm of the breast
HP:0100615Ovarian neoplasm
HP:0009726Renal neoplasm

Run the differential on the 6 obligate / very frequent terms

Annotation source: 25307848[PMID]_15855431[PMID]_22287689[PMID]

7

Sources for this card