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Metaphyseal anadysplasia
Pyle's diseaseMetaphyseal dysplasia Pyle type
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Overview
Pyle disease is a bone disorder characterized by genu valgum (knock knees), Erlenmeyer flask deformity (where there is relative constriction of the diaphysis or shaft of the bone and flaring of the metaphysis or end of the bone), widening of the ribs and clavicles (collarbones), platyspondyly (flattening of the bones of the spine) and cortical thinning. Only about 30 cases have been reported in the literature. Cranial involvement is minimal with some showing mild hyperostosis (excessive new bone formation ) of the skull base and thickening of the frontal and occipital bones. Pyle disease is passed through families in an autosomal recessive manner.
Source: Genetic and Rare Diseases Information Center (GARD), supported by ORDR-NCATS and NHGRI.
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Genetic & Rare Diseases Information Center (GARD)
GARD provides the public with access to current, reliable, and easy-to-understand information about rare or genetic diseases in English or Spanish.
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