Not seen in carpal tunnel syndrome: (A) Pain of medial 3 fingers, (B) Ape thumb deformity, (C) Symptoms worsen at night, (D) Sensory loss on lateral 3½  of palm
Answer is D. Carpal tunnel syndrome is compression of medial nerve below flexor retinacalum. Palmar cutaneous branch is given before median nerve pierces below flexor retinacalum and hence no loss of sensation on lateral 3⅓ of palm.