Given the disproportionately small thorax, I would say this is "Jeune syndrome" also known as asphyxiating thoracic dystrophy
Ans: Asphyxiating thoracic dysplasia or Jeune syndrome This condition is a 'ciliopathy'. Other famous ciliopathies - Kartagener syndrome, Bradet-Biedl syndrome, Alstorm syndrome, Situs inversus and Polycystic kidney disease. Discussion: -Autosomal-recessive illness. -Pathogenesis unknown. Typical findings: -short, horizontally running rib with widening of the costochondral connections; distally emphasized shortened and thickened long bones; three point configuration of the lower edge of the pelvis. Horizontal acetabula; early ossification of the femur head epiphyses -cystic tubular dysplasia; renal insufficiency with proteinuria and arterial hypertension; Nephronophtisis, polycystic kidney, usually starting in grade school. P.S : Also there is Pectus excavatum as pointed by Dr. E M Mike Other causes of narrow chest are - Ellis-van Creveld syndrome and Thantotropic dysplasia Credit to Dr. kangourou and Dr. E M Mike for solving the challenge.
