Lloyd's sign

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Lloyd's sign is a sign of renal calculus or pyelonephritis when pain is elicited by deep percussion in the back between the 12th rib and the spine. [1] It is closely related to costovertebral angle tenderness in that the area of percussion is the same. However, Lloyd's sign is defined as positive costovertebral angle tenderness along with the absence of tenderness with normal pressure.

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Costovertebral angle (CVA) tenderness is pain that results from touching the region inside of the costovertebral angle. The CVA is formed by the 12th rib and the spine. Assessing for CVA tenderness is part of the abdominal exam, and CVA tenderness indicates kidney pathology. 

Costovertebral joints

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Costovertebral may refer to:

Inferior costal facet

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References

  1. M.D, Mark E. Williams (2009). Geriatric Physical Diagnosis: A Guide to Observation and Assessment. McFarland. p. 185. ISBN   9780786451609 . Retrieved 23 November 2017.