Ballance's sign - Ballance's sign is dullness to percussion in the left flank LUQ and shifting dullness to percussion in the right flank seen with splenic rupture/hematoma. The dullness in the left flank is due to coagulated blood, the shifting dullness on the right due to fluid blood.
Kehr's sign - Kehr's sign is the occurrence of acute pain in the tip of the shoulder due to the presence of blood or other irritants in the peritoneal cavity when a person is lying down and the legs are elevated. Kehr's sign in the left shoulder is considered a classical symptom of a ruptured spleen. Kehr's sign is a classical example of referred pain: irritation of the diaphragm is signalled by the phrenic nerve as pain in the area above the collarbone.
Saegasser's sign - Palpation of left upper quadrant inferior to ribs elicits neck pain in the patient.