Newborn born at 39 weeks has several physical deformities. Thick gums, large tongue. Newborn has dislocation of left hip and clubbing of feet with relative immobility of extremities. Fibroblast biopsies from infant show abnormal inclusions by electron microscopy and enzyme assays from serum samples of patient contain lysosomal enzyme activity. 1. What is your diagnosis? Why? 2. What causes it?

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1. Newborn born at 39 weeks has several physical deformities. Thick gums, large tongue. Newborn has dislocation of left hip and clubbing of feet with relative immobility of extremities. Fibroblast biopsies from infant show abnormal inclusions by electron microscopy and enzyme assays from serum samples of patient contain lysosomal enzyme activity. 1. What is your diagnosis? Why? 2. What causes it?