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What is A 20 year old unmarried girl complaining of visual aura lasting for 20 minutes described as a small central disturbance in the field of vision marches towards the periphery, leaving a transient scotoma in its wake. The expanding border of that has a scintillating, dancing, or zigzag edge. This phenomena also remain visible in the dark or with the eyes closed. After the visual symptoms recede, headache develops. She gives a long standing history of stereotypic attacks. What is the most likely diagnosis? and explain in detail?
This is the classical description of classic migraine. No other diagnosis would fit in this scenario. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 234