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Alternating Amaurosis Fugax in Trousseau Syndrome: A Case Report
Katsuhiko Kunitake1, Ryosuke Inagaki1, Soma Furukawa1
1Department of Neurology, TOYOTA Memorial Hospital, Toyota, Aichi, Japan.
Abstract:
Amaurosis fugax (AmF) is defined as transient monocular visual loss secondary to retinal ischemia. In most patients presenting with AmF, the attack of visual loss occurs in the same eye. A 64-year-old woman experienced transient visual loss in her right eye. Three days after that, an attack happened on the left side. In total, she had 5 episodes of AmF in 2 months. AmF occurred on both sides at different times, and so may be referred to as "Alternating AmF". Diffusion-weighted magnetic resonance imaging showed high-intensity lesions in various parts of brain, and laboratory examination revealed elevated D-dimer and ovarian tumor marker. We suspected Trousseau syndrome and found a giant ovary tumor. After removal of the tumor, no recurrence was observed. When a patient with alternating AmF is encountered, screening for malignancy is essential.
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