Spondyloenchondrodysplasia is the medical term for a rare spectrum of symptoms that are inherited following an autosomal recessive inheritance pattern. Skeletal anomalies (including abnormal bone growths) are the usual symptoms of the disorder, although it's phenotypical nature is highly variable among patients with the condition, including symptoms such as muscle spasticity or thrombocytopenia purpura.It is a type of immunoosseous dysplasia.