Question: What are the symptoms of Jansen type metaphyseal chondrodysplasia ?
Answer: What are the signs and symptoms of Jansen type metaphyseal chondrodysplasia? The Human Phenotype Ontology provides the following list of signs and symptoms for Jansen type metaphyseal chondrodysplasia. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Craniofacial hyperostosis 90% Frontal bossing 90% Hypertelorism 90% Micromelia 90% Proptosis 90% Abnormality of calcium-phosphate metabolism 50% Brachydactyly syndrome 50% Clinodactyly of the 5th finger 50% Hypercalcemia 50% Hypoparathyroidism 50% Increased bone mineral density 50% Narrow chest 50% Sensorineural hearing impairment 7.5% Autosomal dominant inheritance - Bowing of the long bones - Brachycephaly - Choanal atresia - Choanal stenosis - Clubbing of fingers - Elevated alkaline phosphatase - Hip contracture - Hypercalciuria - Hyperphosphaturia - Hypophosphatemia - Knee flexion contracture - Metaphyseal chondrodysplasia - Metaphyseal cupping - Misalignment of teeth - Nephrocalcinosis - Osteopenia - Pathologic fracture - Prominent supraorbital arches in adult - Severe short stature - Short long bone - Short ribs - Thick skull base - Waddling gait - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Source: GARD