system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Brown tumour is seen in-
assistant
The correct answer is  Brown tumour is seen in hyperparathyroidism. Brown tumours are not actually tumours but are localised accumulations of hemorrhage and blood pigments and reactive masses of osteoclasts in a spindle shaped stroma. Ref:harrison