Traditional Kehr's sign: Left shoulder pain related to splenic abscess.

Kehr’s sign was originally described by the German surgeon Hans Kehr (1862-1916). It is a classical example of referred pain: irritation of the diaphragm is signaled by the phrenic nerve as pain in the area above the clavicle. We present a case of a 21-year-old woman admitted to the emergency department with the chief complaint of left shoulder pain related to splenic abscess.