Transient vertical monocular hemianopsia with anomalous retinal artery branching.

A 62-year-old man reported 6 stereotyped attacks of transient loss of vision in the lateral visual field of the right eye and was subsequently found to have right internal carotid artery occlusion. Fundoscopy revealed an anomalous central retinal artery branching whereby a single stem vessel supplied the superior and inferior nasal quadrants of the retina. Circulatory insufficiency in this anomalous stem could explain the occurrence of vertical monocular hemianopsia as an unusual manifestation of ipsilateral carotid artery atherosclerosis.

Neurologic complications following the treatment of human Babesia microti infection with diminazene aceturate.

A 65-year-old man infected with Babesia microti failed to respond to therapy with oral chloroquine phosphate. He was then successfully dreated with diminazene aceturate, an experimental anti-protozoal agent. After his recovery from babesiosis, the patient developed acute idiopathic polyneuritis (Landry-Guillain-Barré Syndrome), which was probably related to his diminazene therapy.

Brachial plexus neuropathy. Association with desensitizing antiallergy injections.

Two patients had acute, self-limiting, unilateral brachial plexus neuropathy in association with desensitizing subcutaneous injections of extracts of dusts and molds. Diminution of pain and return of function of the affected limb followed a short course of prednisone therapy, although a beneficial effect of the steroid cannot be considered proved. There is a large variety of antigenic substances already known to produce neuropathy following intramuscular injection; desensitizing antiallergy injections should be added to this list.