<prompt> In differential diagnosis of epididymo-orchitis torsion it is impoant that -Elevation of testis in torson relieves painElevation of testis in epididymo orchitis relieves painTenderness is characteristic of torsion of testisFever is characteristic of epididymo orchitis  <response>: Ans. b Elevation of testis in epididymo orchitis relieves pain 