[Recklinghausen's disease with hypophosphoremia and osteomalacia. Apropos of 2 cases]

The authors report two cases of osteomalacia due to phosphate diabetes in patients with Recklinghausen's disease. In one case abnormalities of vitamin D metabolism were identical with those described in cases of phosphate diabetes associated with mesenchymal tumours. The abnormalities found in the second case were different. The physiopathological mechanism of osteomalacia due to phosphate diabetes in mesenchymal diseases generally and in Recklinghausen's disease in particular is discussed.