Prehn sign is seen in: (A) Acute orchitis, (B) Chronic orchitis, (C) Testicular torsion, (D) None
Answer is C. Prehn's sign - elevation of the scrotum for 1 hr relieves the pain of acute epididymo-orchitis but aggrevates the pain in case of torsion testis . Reference : page 1082 SRB's manual of surgery 5th edition