A 16-year-old African American girl at the 20th week of pregnancy presented with blurry vision. She had been having nausea and vomiting requiring home intravenous on-dansetron. She could tolerate only liquids and had lost 30 pounds (approximately 25% of body weight) over the course of pregnancy. On the day of admission, she woke up with painless binocular blurry vision. She denied diplopia, limb weakness, dysarthria, numbness, headaches, and confusion. She went to other hospital where brain computed tomography showed symmetric hypodensity in the pons. This finding prompted transfer to our hospital. Her medical history included 1 spontaneous abortion and hyperemesis requiring hospitali-zation twice during this pregnancy. Family history was negative for hypercoagulability, sickle cell disease, and multiple sclerosis. Her grandfather had stroke at an old age. She denied smoking, alcohol drinking, and use of illicit drugs.
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