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Jansen's metaphyseal chondrodysplasia is inherited in an autosomal dominant manner. Jansen's metaphyseal chondrodysplasia ( JMC ) is a disease that results from ligand -independent activation of the type 1 ( PTH1R ) of the parathyroid hormone receptor , due to one of three reported mutations (activating mutation).
Metaphyseal dysplasia, or Pyle disease, [3] is a disorder of the bones. It is a rare disease in which the outer part of the shafts of long bones is thinner than normal and there is an increased chance of fractures .
Metaphyseal chondrodysplasia Schmid type is a type of chondrodysplasia associated with a deficiency of collagen, type X, alpha 1. [2] [3] [4]Unlike other "rickets syndromes", affected individuals have normal serum calcium, phosphorus, and urinary amino acid levels.
Metaphyseal tumors or lesions include osteosarcoma, chondrosarcoma, fibrosarcoma, osteoblastoma, enchondroma, fibrous dysplasia, simple bone cyst, aneurysmal bone cyst, non-ossifying fibroma, and osteoid osteoma. [5] One of the clinical signs of rickets that doctors look for is cupping and fraying at the metaphyses when seen on X-ray.
Specific treatment for enchondroma is determined by a physician based on the age, overall health, and medical history of the patient. Other considerations include: extent of the disease; tolerance for specific medications, procedures, or therapies; expectations for the course of the disease; opinion or preference of the patient; Treatment may ...
Spondyloepimetaphyseal dysplasia, Strudwick type is an inherited disorder of bone growth that results in dwarfism, characteristic skeletal abnormalities, and problems with vision. [1] The name of the condition indicates that it affects the bones of the spine (spondylo-) and two regions near the ends of bones ( epiphyses and metaphyses ).
Fibrochondrogenesis is a congenital disorder presenting several features and radiological findings, some which distinguish it from other osteochondrodysplasias. [7] These include: fibroblastic dysplasia and fibrosis of chondrocytes (cells which form cartilage); [4] [5] and flared, widened long bone metaphyses (the portion of bone that grows during childhood).
Hereditary multiple osteochondromas (HMO), also known as hereditary multiple exostoses, is a disorder characterized by the development of multiple benign osteocartilaginous masses in relation to the ends of long bones of the lower limbs such as the femurs and tibias and of the upper limbs such as the humeri and forearm bones.