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  • Title: Bone changes of mucolipidosis II at different ages. Postmortem study of three cases.
    Author: Pazzaglia UE, Beluffi G, Castello A, Coci A, Zatti G.
    Journal: Clin Orthop Relat Res; 1992 Mar; (276):283-90. PubMed ID: 1537168.
    Abstract:
    Bone changes are a constant feature of mucolipidosis II, with striking differences between newborns and older children. Intracellular, membrane-bound vacuoles were found in the chondrocytes, osteoblasts, osteocytes, and stromal fibroblasts of three affected children. Osteoclasts and marrow cells were unaffected. Ricketslike lesions were present at birth in the two younger cases, whereas signs of high bone turnover and defective calcification were no longer present in the older child. Severe abnormalities of the metaphyseal plate with the loss of normal cartilage architecture and the absence of endochondral ossification were the major changes in this age group.
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