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Anaphylaxis (Greek: ana-'up' + phylaxis 'guarding') is a serious, potentially fatal allergic reaction and medical emergency that is rapid in onset and requires immediate medical attention regardless of the use of emergency medication on site.
Concomitant presence of a moving scintillating scotoma is suggestive of migraine, [6] but has been seen in cerebral cancer as well. [7] Computed tomography (CT scan) or MRI can be used to investigate if stroke, tumor, structural lesion, or demyelination is the cause of homonymous hemianopsia.
The origins of pathophysiology as a distinct field date back to the late 18th century. The first known lectures on the subject were delivered by Professor August Friedrich Hecker at the University of Erfurt in 1790, and in 1791, he published the first textbook on pathophysiology, Grundriss der Physiologia pathologica, [2] spanning 770 pages. [3]