Skip Navigation LinksHome > October 2012 - Volume 34 - Issue 7 > A Case of Osteosarcoma in a Patient With Pycnodysostosis
Journal of Pediatric Hematology/Oncology:
doi: 10.1097/MPH.0b013e31826157b1
Clinical and Laboratory Observations

A Case of Osteosarcoma in a Patient With Pycnodysostosis

Cortisse, Natasha MD*; Forget, Patricia MD*; Dresse, Marie F. MD*; Florkin, Benoit MD*; Mascard, Eric MD; Guinebretière, Jean M. MD; Brugières, Laurence MD§; Hoyoux, Claire MD*

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Abstract

Pycnodysostosis is a rare sclerosing bone dystrophy. The main clinical features are short stature and oral and maxillofacial abnormalities such as a large head, a small and underdeveloped face with prominent nose and eyes, irregular dentition, small hands and feet with dystrophic nails, and trunk deformities such as scoliosis. The differential diagnosis is established with other skeletal dysplasias such as osteopetrosis, cleidocranial dysplasia, and idiopathic acro-osteolysis. Since its first description in 1962 by Maroteaux and Lamy, about 100 cases have been published, some of these with uncommon features. We describe the case of a 22-year-old European man with pycnodysostosis who developed a chondroblastic osteosarcoma of the right femur. No case of bone cancer in this sclerosing bone disease had been described so far.

© 2012 Lippincott Williams & Wilkins, Inc.

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