A Case of Circumscribed Unilateral, and Elective Sensory Paralysis

BY elective sensory paralysis is to be understood one in which certain only of the functions of the sensory nerves are abolished. The observations which are to be briefly reported here have been made upon my own left arm, and in large part by myself. The anamnesis is as follows : I am at present twenty-eight years old, and, as far as I remember, aside from the ordinary diseases from which children suffer, I have always been tolerably healthy. For the past nine or ten years I have noticed at times along the inner (medial) side of the left arm radiating pains, which are prone to appear on standing for a long time or after a long walk, especially when I am overtired or a little run down in health. For about the same length of time, sensations of numbness and formication have made themselves noticeable. These have been referred to the same area, and have affected also, in a slight degree, the little finger and the ulnar side of the ring finger of the left hand.