Carpenter syndrome

Carpenter syndrome
Carpenter syndrome
Specialty	Medical genetics

Carpenter syndrome, also called acrocephalopolysyndactyly type II,^[1] is an extremely rare autosomal recessive^[2] congenital disorder characterized by craniofacial malformations, obesity, and syndactyly.^[2]

It was first characterized in 1909.^[3]

Presentation

Carpenter syndrome presents several features:

Tower-shaped skull (craniosynostosis)
Additional or fused digits (fingers and toes)
Obesity
Reduced height

Mental deficiency is also common with the disorder, although some patients may have average intellectual capacity.^[4]

Genetics

Carpenter syndrome has an autosomal recessive pattern of inheritance.

Carpenter syndrome has been associated with mutations in the RAB23 gene,^[5] which is located on chromosome 6 in humans.

References

^ Online Mendelian Inheritance in Man (OMIM): 201000
^ ^a ^b Perlyn, Ca; Marsh, Jl (2008). "Craniofacial dysmorphology of Carpenter syndrome: lessons from three affected siblings". Plastic and reconstructive surgery. 121 (3): 971–81. doi:10.1097/01.prs.0000299284.92862.6c. PMID 18317146. {{cite journal}}: Unknown parameter |doi_brokendate= ignored (|doi-broken-date= suggested) (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
^ Carpenter G (1909). "Case of acrocephaly with other congenital malformations". Proc Roy Soc Med. 2: 45–53, 199–201.
^ Frias, Jl; Felman, Ah; Rosenbloom, Al; Finkelstein, Sn; Hoyt, Wf; Hall, Bd (1978). "Normal intelligence in two children with Carpenter syndrome". American journal of medical genetics. 2 (2): 191–9. doi:10.1002/ajmg.1320020210. PMID 263437. {{cite journal}}: Cite has empty unknown parameter: |month= (help)CS1 maint: multiple names: authors list (link)
^ Jenkins, D; Seelow, D; Jehee, Fs; Perlyn, Ca; Alonso, Lg; Bueno, Df; Donnai, D; Josifova, D; Mathijssen, Im; Morton, Je; Orstavik, Kh; Sweeney, E; Wall, Sa; Marsh, Jl; Nurnberg, P; Passos-Bueno, Mr; Wilkie, Ao (2007). "RAB23 mutations in Carpenter syndrome imply an unexpected role for hedgehog signaling in cranial-suture development and obesity". American journal of human genetics. 80 (6): 1162–70. doi:10.1086/518047. PMC 1867103. PMID 17503333. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)

v t e Congenital abnormality syndromes
Craniofacial	Acrocephalosyndactyly Apert syndrome Carpenter syndrome Pfeiffer syndrome Saethre–Chotzen syndrome Sakati–Nyhan–Tisdale syndrome Bonnet–Dechaume–Blanc syndrome Other Baller–Gerold syndrome Cyclopia Goldenhar syndrome Moebius syndrome Pierre Robin sequence
Short stature	1q21.1 deletion syndrome Aarskog–Scott syndrome Cockayne syndrome Cornelia de Lange syndrome Dubowitz syndrome Noonan syndrome Robinow syndrome Silver–Russell syndrome Seckel syndrome Smith–Lemli–Opitz syndrome Snyder–Robinson syndrome Turner syndrome
Limbs	Adducted thumb syndrome Holt–Oram syndrome Klippel–Trénaunay syndrome Nail–patella syndrome Rubinstein–Taybi syndrome Gastrulation/mesoderm: Caudal regression syndrome Ectromelia Sirenomelia VACTERL association
Overgrowth syndromes	Bannayan–Riley–Ruvalcaba syndrome Beckwith–Wiedemann syndrome Benign symmetric lipomatosis Klippel–Trénaunay syndrome Neurofibromatosis type I Perlman syndrome Proteus syndrome Sotos syndrome Tatton-Brown–Rahman syndrome Weaver syndrome
Laurence–Moon–Bardet–Biedl	Bardet–Biedl syndrome Laurence–Moon syndrome
Combined/other, known locus	2 (Feingold syndrome) 3 (Zimmermann–Laband syndrome) 4/13 (Fraser syndrome) 8 (Branchio-oto-renal syndrome, CHARGE syndrome) 12 (Keutel syndrome, Timothy syndrome) 15 (Marfan syndrome) 19 (Donohue syndrome) Multiple Fryns syndrome

Presentation

Genetics

References

See also