<prompt> All of the following are the causes of sudden increase in pain in osteochondroma, except:Sarcomatous changeFractureBursitisDegenerative changes  <response>: Ans. D. Degenerative changesa. Osteochondroma is usually painless. Sudden onset of pain in osteochondroma can be due to:b. Malignant transformationc. Bursitisd. Fracturee. Pressure or traction on neighboring structures nervetendonmuscle 