Can anyone give an account me what disease the Elephant Man have that cause his deformity?

Was it elephantoses?Can anyone give an account me what disease the Elephant Man have that cause his deformity?
Joseph Merrick most likely suffered from Proteus syndrome, because of DNA conducting tests done on his remains in 2003. He may own had neurofibromatosis type I as ably, acording to Dr. Charis Eng, who did the test.
He did not hold elephantiasis.
Neurofibromatosis and/or Elephantiasis