کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2156896 | 1090498 | 2007 | 6 صفحه PDF | دانلود رایگان |
We report on a 61-year-old Japanese male with a pedunculated tumor in the common bile duct. The tumor consisted of two types of neoplastic cells. The majority showed atypical spindle- and giant-shaped features and proliferated densely in an inflammatory stroma, revealing a sarcomatous pattern. They expressed vimentin, KL-1, and CAM5.2. The remaining minority showed glandular and tubular features, occupied only less than 5%, located only in the tumor surface, and expressed wide spectrum keratin, KL-1, CAM5.2, epithelial membrane antigen, AE1/AE3, and carcinoembryonic antigen. CD68-positive osteoclast-like giant cells were also observed. Therefore, the patient was diagnosed as having an undifferentiated carcinoma, spindle and giant cell type.
Journal: Pathology - Research and Practice - Volume 203, Issue 3, 28 March 2007, Pages 179–184