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Imaging Sci Dent. 2011 Dec;41(4):177-181. English. Case Report. https://doi.org/10.5624/isd.2011.41.4.177
Ramaiah KK , George GB , Padiyath S , Sethuraman R , Cherian B .
Department of Oral Medicine and Radiology, Mar Baselios Dental College, Kothamangalam, India. krksmile@gmail.com
Department of Prosthodontics, Mar Baselios Dental College, Kothamangalam, India.
Abstract

Pyknodysostosis is a rare autosomal recessive disorder characterized by the post natal onset of short limbs, short stature, and generalized hyperostosis along with acro-osteolysis with sclerosis of the terminal phalanges, a feature that is considered essentially pathognomonic. Other features include persistence of fontanelles, delayed closure of sutures, wormian bones, absence of frontal sinuses, and obtuse mandibular gonial angle with relative mandibular prognathism. We report a case of 17-year-old girl who presented with a chief complaint of retention of deciduous teeth. General physical examination demonstrated short stature, frontal and parietal bossing, depressed nasal bridge, beaked nose, hypoplastic midface, wrinkled skin over the finger tips, and nail abnormalities. Radiographs showed multiple impacted permanent and supernumerary teeth, hypoplastic paranasal sinuses with acro-osteolysis of terminal phalanges, and open fontanelles, and sutures along with wormian bones in the lambdoidal region.

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