Aya Okabayashi

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In a series of 94 autopsy cases of hepatocellular carcinoma (HCC), 8 cases of minute HCC (less than 3.5 cm in diameter) were included. These cases had some additional nodular foci that revealed a possible histogenesis of HCC. The lesion was first noted as a group of basophilic liver cell cords in a limited area of a hyperplastic nodule. The cords showed(More)
Twenty-one nodules of small hepatocellular carcinoma (HCC) were examined. Histologically, the nodules often presented formation of plump trabeculae, marked nuclear atypism, or aggressive growth comprising capsular invasion, vascular invasion, and replacement of adjacent pseudolobules. Aside from these characteristic findings of HCC, it was important to(More)
Dear Editor, Phakomatosis pigmentovascularis (PPV) is a disorder characterized by a combination of cutaneous hemangioma and pigmentary nevus. PPV was first described by Ota in 1947 and over 200 cases of PPV have since been reported. PPV is classified into five types and 10 subtypes. Here, we describe an unusual case of a 5-month-old Japanese female(More)