1. Chondrodysplasia, enchondromas and a chest deformity causing severe pulmonary morbidity in a boy with a PTHLH duplication: A case report
- Author
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Carline E. Tacke, Suzanne W.J. Terheggen-Lagro, Annemieke M. Boot, Astrid S. Plomp, Abeltje M. Polstra, Rick R. van Rijn, Peter A.A. Struijs, Henk van den Berg, and Christiaan F. Mooij
- Subjects
Parathyroid hormone-like hormone ,PTHLH ,Chondrodysplasia ,Enchondroma ,Diseases of the musculoskeletal system ,RC925-935 - Abstract
Parathyroid hormone-like hormone (PTHLH) plays an important role in bone formation. Several skeletal dysplasias have been described that are associated with disruption of PTHLH functioning. Here we report on a new patient with a 898 Kb duplication on chromosome 12p11.22 including the PTHLH gene. The boy has multiple skeletal abnormalities including chondrodysplasia, lesions radiographically resembling enchondromas and posterior rib deformities leading to a severe chest deformity. Severe pulmonary symptoms were thought to be caused by limited mobility and secondary sputum evacuation problems due to the chest deformity. Imaging studies during follow-up revealed progression of the number of skeletal lesions over time. This case extends the phenotypic spectrum associated with copy number variation of PTHLH.
- Published
- 2021
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