A 26-year-old woman presented with 5 years history of swelling and pain over the right collar bone. She also complained the similar swelling and pain over the mid left thigh since 1 year. There was no history of fever, loss of weight or other co-morbidities.

Source:  Applied Radiology What could be the possible diagnosis in this case? *This case is from Docplexus Editorial Team for educative purpose only.