connective tissue disease
   |__bone disease
       |__spinal disease  94 rec.
           |__achondrogenesis type IA 1 rec.
           |__acromesomelic dysplasia, Maroteaux type 5 rec.
           |__ankylosing spondylitis 6 rec.
           |   |__ankylosing spondylitis 1 6 rec.
           |   |__ankylosing spondylitis 2
           |   |__ankylosing spondylitis 3
           |   |__juvenile ankylosing spondylitis
           |__atelosteogenesis 4 rec.
           |__autosomal dominant osteopetrosis 2 1 rec.
           |__chronic recurrent multifocal osteomyelitis
           |__dropped head syndrome
           |__KBG syndrome 1 rec.
           |__Klippel-Feil syndrome 2 rec.
           |   |__Klippel-Feil syndrome 1
           |   |__Klippel-Feil syndrome 2 1 rec.
           |   |__Klippel-Feil syndrome 3
           |   |__Klippel-Feil syndrome 4 1 rec.
           |__kyphosis
           |   |__congenital kyphosis
           |   |__postural kyphosis
           |__rigid spine muscular dystrophy 1
           |__Scheuermann's disease
           |__scoliosis
           |   |__idiopathic scoliosis
           |__spinal chordoma
           |   |__sacrum chordoma
           |__spondylocarpotarsal synostosis syndrome 3 rec.
           |__spondylocostal dysostosis 8 rec.
           |   |__spondylocostal dysostosis 1
           |   |__spondylocostal dysostosis 2 1 rec.
           |   |__spondylocostal dysostosis 3 1 rec.
           |   |__spondylocostal dysostosis 4 3 rec.
           |   |__spondylocostal dysostosis 5 3 rec.
           |   |__spondylocostal dysostosis 6
           |__spondyloepimetaphyseal dysplasia 66 rec.
           |   |__anauxetic dysplasia(+) 2 rec.
           |   |__Dyggve-Melchior-Clausen disease(+) 3 rec.
           |   |__metatropic dysplasia 1 rec.
           |   |__Schimke immuno-osseous dysplasia 49 rec.
           |   |__spondyloepimetaphyseal dysplasia with joint laxity(+) 4 rec.
           |   |__spondyloepimetaphyseal dysplasia, Genevieve-type 1 rec.
           |   |__spondyloepimetaphyseal dysplasia, Li-Shao-Li type 1 rec.
           |   |__spondyloepimetaphyseal dysplasia, Missouri type 1 rec.
           |   |__spondyloepimetaphyseal dysplasia, Pakistani type 1 rec.
           |   |__spondyloepimetaphyseal dysplasia, Sponastrime type 1 rec.
           |   |__spondyloepimetaphyseal dysplasia, Strudwick type
           |   |__spondylometaepiphyseal dysplasia, short limb-hand type 2 rec.
           |   |__X-linked spondyloepimetaphyseal dysplasia
           |__spondylolisthesis
           |__spondylolysis
           |__spondylosis
           |__X-linked spondyloepiphyseal dysplasia tarda 1 rec.