Rovsing's sign
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Rovsing's sign is a sign of appendicitis.[1] If palpation of the lower left quadrant of a person's abdomen results in more pain in the right lower quadrant, the patient is said to have a positive Rovsing's sign and may have appendicitis.
Historical Perspective
The sign is named for Niels Thorkild Rovsing, Danish surgeon, 1862-1927.[2]
Pathophysiology
This anomaly occurs because the pain nerves deep in the intestines do not localize well to an exact spot on the abdominal wall, unlike pain nerves in muscles. Pain from a stomach ulcer or gallstone can be interpreted by the brain as pain from the stomach, liver, gall bladder, duodenum, or first part of the small intestine. It will "refer" pain often to the mid upper abdomen.
Because the appendix is a piece of intestine, it follows a similar referral pattern. An appendix with some early inflammation may give a non-specific irritation somewhere near the umbilicus (belly button). Should the inflammation become severe, it may actually irritate the inner lining of the abdominal cavity called the peritoneum. This thin layer lies under or behind the abdominal wall muscles. The pain is "localized." If pressure is applied to the muscles of the right lower abdomen (or iliac fossa) near a very irritated appendix, then the muscle fibers in that area will be stretched and will hurt.
Technique
A Rovsing's sign is elicited by pushing on the abdomen far away from the appendix in the left lower quadrant as in most people the appendix is in the right lower quadrant. While this maneuver stretches the entire peritoneal lining, it only causes pain in any location where the peritoneum is irritating the muscle. In the case of appendicitis, the pain is felt in the right lower quadrant despite pressure being placed elsewhere.
Most practitioners push on the left lower quadrant to see where the patient complains of pain. If pain is felt in the right lower quadrant, then there may be an inflamed organ or piece of tissue in the right lower quadrant. The appendix is generally the prime suspect, although other pathology can also give a "positive" Rovsing's sign. If left lower quadrant pressure by the examiner leads only to left-sided pain or pain on both the left and right sides, then there may be some other pathologic etiology. This may include causes relating to the bladder, uterus, descending (left) colon, fallopian tubes, ovaries, or other structures.
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