Regarding the story from Malegaon in Chapter 34, what was the specific ailment, and what medical efforts were made before the family sought Sai Baba's help?

Chapter 34 describes the case of a doctor's nephew from Malegaon who suffered from a "bone-cyst," also known as Hadyavarn. The text calls it a "most difficult and extraordinary malady." Before turning to spiritual intervention, the family exhausted all medical options available. The boy's uncle, himself a degree-holding physician, along with his expert and intelligent surgeon friends, attempted various treatments. The chapter explicitly mentions that "all native and foreign treatments were tried" and that "even surgery was attempted," but nothing succeeded, leaving the medical professionals feeling helpless and the boy in great pain.