A Type 3 Klippel Feil Syndrome Case With Atrial Septal Defect and Atrial Septal Aneurysm

Klippel Feil syndrome (KFS) is a rare congenital disorder characterized by short neck due to abnormal fusion of cervical vertebrae, limited head and neck motion and low posterior hairline. We present a rare case of type 3 KFS with the fusion of cervical and thoracic vertebrae, cervical hemivertebrae anomaly, Sprengel's deformity, rib fusion anomaly, accompanied by atrial septal defect/septal aneurysm, thereby reviewing the literature about this syndrome.