MRI brain findings of Abamectin toxic encephalopathy: a case report with review of literature.

Abamectin is an insecticidal/miticidal compound derived from the soil bacterium "Streptomyces avermitilis". Abamectin toxicity in humans is very rare. We present a case of acute neurotoxicity induced by Abamectin, showcasing distinctive MRI brain findings in a 33-year-old female who exhibited a favourable recovery with the aid of supportive care. In a patient with known exposure to toxins, even with a lack of knowledge of the specific type or class of toxin, recognition of anatomical distribution of lesions on brain MRI and their characteristic appearance can help exclude other causes of neurologic impairment and aid in timely management.

Wernicke's encephalopathy: Is visual loss a red herring?

Predominantly visual loss, is very rare in Wernicke's encephalopathy. A 22 year old lady, in her 28th week of gestation, presented with a confused mental state, bilateral papilloedema with retinal hemorrhages, ophthalmoparesis, and cerebellar signs. Her MRI brain was suggestive of Wernicke's encephalopathy and she recovered with intravenous thiamine.

Auditory aura from the hippocampus - Not all that 'rings' is neocortical temporal lobe epilepsy.

Epileptic auras provide the initial clues to identify the probable region of ictal onset. In temporal lobe epilepsies, auras are most commonly experiential or viscerosensory, when they arise from mesial structures. Whereas sensations such as vertigo and auditory hallucinations are more likely to occur from the lateral temporal lobe structures. Auditory auras have been described from the lateral temporal neocortex, Heschl's gyri, frontal operculum and posterior insula. We herein describe a patient with temporal lobe epilepsy with an auditory aura who was localized to have the onset of seizures from the hippocampus using stereotactic EEG (SEEG). Stimulation of the hippocampal contacts also reproduced the habitual auditory aura. Anterior temporal lobectomy with amygdalohippocampectomy resulted in complete seizure freedom for 3 years. This is an initial description of auditory aura elicited from the hippocampus using SEEG.