Question: A 56-year-old woman presents, after a casual fall to the floor, pain, deformity and increased volume in the left arm, with impossibility for the dorsal flexion of the hand. What is the most likely diagnosis? 
 Options:  <1> Trocheter fracture in the left humerus. <2> Diaphyseal fracture of the left humerus with radial nerve injury. <3> Supraconcondylar fracture of the humeral palate with median nerve injury. <4> Fracture of the anatomical neck of the humerus with radial nerve injury. <5> Fracture of displaced epitrochlea with ulnar nerve injury.
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