What was the medical condition of the doctor's nephew from Malegaon, and what treatments did they try before seeking Sai Baba's help?

According to Chapter 34 of the Shri Sai Satcharitra, the nephew of a degree-holding doctor from Malegaon was suffering from a severe ailment called a bone-cyst, or Hadyavarn. This was described as a most difficult and extraordinary malady. Before turning to Sai Baba, the family exhausted all medical options. The boy's uncle, himself a physician, along with his physician friends and even expert surgeons, tried various treatments without success. The text explicitly mentions that all native and foreign treatments were attempted, including surgery, but the boy's condition showed no improvement and the medical professionals felt helpless.