Pycnodysostosis is a rare autosomal recessive disorder that manifests as generalized osteosclerosis of the skeleton as a result of decreased bone turnover. Patients tend to suffer from numerous fractures owing to dense, abnormally brittle bones. This syndrome has a number of characteristic clinical and radiographic signs that differentiate it from other osteosclerotic conditions. Hypoplastic Mandible being the most characteristic diagnostic feature. This is a case report of a family of 3 young males with history of multiple fractures.
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Pavani Tummala (2013) studied this question.