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Polysyndactyly-cardiac malformation syndrome

MedGen UID:
337895
Concept ID:
C1849719
Congenital Abnormality; Disease or Syndrome
Synonyms: BONNEAU SYNDROME; Polysyndactyly with cardiac malformation
SNOMED CT: Polysyndactyly and cardiac malformation syndrome (724066002); Bonneau syndrome (724066002)
Modes of inheritance:
Autosomal recessive inheritance
MedGen UID:
141025
Concept ID:
C0441748
Intellectual Product
Source: Orphanet
A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele).
 
Monarch Initiative: MONDO:0009900
OMIM®: 263630
Orphanet: ORPHA2934

Definition

Syndrome with characteristics of polysyndactyly, hexadactyly (duplication of the first toe) and complex cardiac malformation (including atrial and ventricular septal defect, single ventricle, aortic dextroposition, or dilation of the right heart). It has been described in six patients from three unrelated families. Other manifestations were present in some patients (i.e. facial dysmorphism, hepatic cysts). [from SNOMEDCT_US]

Clinical features

From HPO
Renal cyst
MedGen UID:
854361
Concept ID:
C3887499
Disease or Syndrome
A fluid filled sac in the kidney.
Syndactyly
MedGen UID:
52619
Concept ID:
C0039075
Congenital Abnormality
Webbing or fusion of the fingers or toes, involving soft parts only or including bone structure. Bony fusions are referred to as "bony" syndactyly if the fusion occurs in a radio-ulnar axis. Fusions of bones of the fingers or toes in a proximo-distal axis are referred to as "symphalangism".
Preaxial hand polydactyly
MedGen UID:
237235
Concept ID:
C1395852
Congenital Abnormality
Supernumerary digits located at the radial side of the hand. Polydactyly (supernumerary digits) involving the thumb occurs in many distinct forms of high variability and severity. Ranging from fleshy nubbins over varying degrees of partial duplication/splitting to completely duplicated or even triplicated thumbs or preaxial (on the radial side of the hand) supernumerary digits.
Duplication of phalanx of hallux
MedGen UID:
395424
Concept ID:
C1860164
Congenital Abnormality
Partial or complete duplication of one or more phalanx of big toe.
Atrial septal defect
MedGen UID:
6753
Concept ID:
C0018817
Congenital Abnormality
Atrial septal defect (ASD) is a congenital abnormality of the interatrial septum that enables blood flow between the left and right atria via the interatrial septum.
Ventricular septal defect
MedGen UID:
42366
Concept ID:
C0018818
Congenital Abnormality
A hole between the two bottom chambers (ventricles) of the heart. The defect is centered around the most superior aspect of the ventricular septum.
Hepatic cysts
MedGen UID:
82761
Concept ID:
C0267834
Disease or Syndrome
A cystic lesion located in the liver.
Abnormal facial shape
MedGen UID:
98409
Concept ID:
C0424503
Finding
An abnormal morphology (form) of the face or its components.
Anteverted nares
MedGen UID:
326648
Concept ID:
C1840077
Finding
Anteriorly-facing nostrils viewed with the head in the Frankfurt horizontal and the eyes of the observer level with the eyes of the subject. This gives the appearance of an upturned nose (upturned nasal tip).
Small nail
MedGen UID:
537942
Concept ID:
C0263523
Finding
A nail that is diminished in length and width, i.e., underdeveloped nail.
Polyhydramnios
MedGen UID:
6936
Concept ID:
C0020224
Pathologic Function
The presence of excess amniotic fluid in the uterus during pregnancy.
Hypertelorism
MedGen UID:
9373
Concept ID:
C0020534
Finding
Although hypertelorism means an excessive distance between any paired organs (e.g., the nipples), the use of the word has come to be confined to ocular hypertelorism. Hypertelorism occurs as an isolated feature and is also a feature of many syndromes, e.g., Opitz G syndrome (see 300000), Greig cephalopolysyndactyly (175700), and Noonan syndrome (163950) (summary by Cohen et al., 1995).

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVPolysyndactyly-cardiac malformation syndrome
Follow this link to review classifications for Polysyndactyly-cardiac malformation syndrome in Orphanet.

Supplemental Content

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