Can you describe the medical case of the doctor's nephew from Malegaon as detailed in Chapter 34?

According to Chapter 34, a doctor from Malegaon, in the Nashik district, had a nephew suffering from a severe ailment. The disease was identified as a bone-cyst, or Hadyavarn, described as a most difficult and extraordinary malady. Despite the uncle being a degree-holding physician himself, and despite consulting with other expert and intelligent surgeons, no remedy worked. The chapter states that all native and foreign treatments were exhausted, and even surgery was attempted without success. The young nephew was in great distress and pain, leading his worried relatives to eventually seek a non-medical solution from the saint Sai Baba.