<prompt> A 28-year-old man is admitted to the emergency department complaining of pain in the umbilical region that moves to the right iliac fossa. Which is a corroborative sign of acute appendicitis?Referred pain in the right side with pressure on the left Rovsing signIncrease of pain with testicular elevationRelief of pain in lower abdomen with extension of thighRelief of pain in lower abdomen with internal rotation of right thigh  <response>: Rousings sign is corroborative of acute appendicitis. The other signs are corroborative of appendicitis. Hyperesthesia is a useful sign provided that it is performed objectively. The area of hyperesthesia is a triangular area base placed upward in the right lower abdomen. 