Pyknodysostosis is an extremely rare lysosomal storage disease of the bone. Osteosclerosis of the skeleton is due to a decrease of the bone turnover. A plethora of clinical and radiological findings are observed. Patients are short statured with acroosteolysis and dense bones and develop multiple spontaneous bone fractures. A female patient presented with frontal bossing, small and thick fingers and toes. The classical clinical and radiological findings confirmed it as pyknodysostosis.
Keywords: Acroosteolysis; Fontanel; Sandal gap deformity.