caa a22 4500 475786246 CHVBK 20180406123659.0 cr unu---uuuuu 170329e20000101xx s 000 0 eng 10.1007/PL00013807 doi (NATIONALLICENCE)springer-10.1007/PL00013807 Brown tumour as a complication of secondary hyperparathyroidism in severe long-lasting vitamin D deficiency rickets [Elektronische Daten] [A. Bereket, Y. Casur, P. Firat, N. Yordam] Brown tumour is a localised form of fibrous-cystic osteitis associated with primary or secondary hyperparathyroidism. Despite the fact that secondary hyperparathyroidism occurs in vitamin D deficiency rickets, no cases of rickets with brown tumour have so far been described. We present a 2.9-year-old girl who had brown tumour of the mandible due to severe vitamin D deficiency rickets. Treatment with vitamin D3 corrected the hyperparathyroidism rapidly which was followed by gradual regression in tumour size. Conclusion Brown tumour can develop in severe, long-standing vitamin D deficiency rickets and responds to vitamin D treatment. Springer-Verlag Berlin Heidelberg, 2000 Key words Brown tumour nationallicence Rickets nationallicence Hyperparathyroidism nationallicence Vitamin D nationallicence Mandibular tumour nationallicence Bereket A. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut Casur Y. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut Firat P. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut Yordam N. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut https://doi.org/10.1007/PL00013807 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/PL00013807 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bereket A. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut NATIONALLICENCE 700 1- Casur Y. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut NATIONALLICENCE 700 1- Firat P. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut NATIONALLICENCE 700 1- Yordam N. Department of Paediatrics, Hacettepe University, Ihsan Dogramaci Children's Hospital, Ankara, Turkey, TR aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer