Lasegue, Ernest C.

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Ernest C., French physician, 1816-1883.
Lasègue disease - obsolete eponym for delusions of persecution.
Lasègue maneuver
Lasègue sign - when patient is supine with hip flexed, dorsiflexion of the ankle causes pain or muscle spasm in the posterior thigh indicates lumbar root or sciatic nerve irritation.
Lasègue syndrome - in conversion hysteria, inability to move an anesthetic limb except under control of the sight.