%0 Journal Article %A Preeti P Nair %A Harshkant P Gharote %A Shaji Thomas %A Guruprasad R %A Neha Singh %T Brown tumour of the jaw %D 2011 %R 10.1136/bcr.07.2011.4465 %J BMJ Case Reports %P bcr0720114465 %V 2011 %X Brown tumours are classic bony lesions that arise as a result of the effect of parathyroid hormone on bone tissue in some patients with hyperparathyroidism. They are erosive bony lesions caused by rapid osteolysis and peritrabecular fibrosis, resulting in a local destructive phenomenon. Facial skeleton is involved in about 2% of all cases of which the mandible is frequently affected. A 35-year-old female who was diagnosed with osteomalacia and brown tumour in posterior mandible as the sign of secondary hyperparathyroidism secondary to vitamin D deficiency is presented. %U https://casereports.bmj.com/content/casereports/2011/bcr.07.2011.4465.full.pdf