Entrapment neuropathy Entrapment neuropathy of the ulnar nerve at elbow 2013-02-24T09:27:57Z An entrapment neuropathy of the ulnar nerve in the cubital tunnel (in the elbow) characterized by numbness in the ring and little fingers and weakness of the intrinsic muscles in the hand. HP:0012186 UMLS:C4023008 Cubital tunnel syndrome