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Pseudoachondroplasia: A rare cause of rhizomelic dwarfism

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Author(s): Tandon Anupama | Bhargava Satish | Goel Sandeep | Bhatt Shuchi

Journal: Indian Journal of Orthopaedics
ISSN 0019-5413

Volume: 42;
Issue: 4;
Start page: 477;
Date: 2008;
Original page

Keywords: Pseudoachondroplasia | rhizomelic dwarfism | skeletal dysplasia

ABSTRACT
Pseudoachondroplasia is a rare rhizomelic short-limbed skeletal dysplasia. Its inheritance is varied; autosomal dominant pattern and germline or somatic mutations can occur. Children at 2-3 years of age present with short height, gait disturbances, or limb deformities. Characteristic skeletal changes include shortening of long bones, predominantly of femur and humerus with irregular, flared metaphysis and fragmented epiphysis. Platyspondyly is also present, but the interpedicular distance is normal. The diagnosis is essentially based on imaging, and thus, it is important to be aware of the radiological features. Here, we report a case of two brothers where the elder sibling had classical radiological features of pseudoachondroplasia, whereas the younger one had early changes of this disorder.
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