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- 61 year old man with right lung nodule
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stevenshen 离线
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| 姓 名： | ××× | 性别： | Male | 年龄： | 61 |
| 标本名称： | Right upper lobe lung nodule | ||||
| 简要病史： | |||||
| 肉眼检查： | 1.5 cm | ||||
Frozen section diagnosis and differential diagnoses?
Answer will be posted after Chinese New Year.
Happy New Year!
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本帖最后由 于 2010-02-04 08:51:00 编辑
×参考诊断
Metastatic melanoma
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stevenshen 离线
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- It is metastic melanoma (hope Dr. Ma can comment again).
- S100 and HMB 45 were positive and cytokeratin was negative.
- On frozen, we will need to keep a wide differential (such as Dr. Jin's list).
- Look for features that will favor non-neoplastic (granuloma), benign vs. malignant, primary vs. metastatic.
- On this case, I thought the touch prep cytology is very helpful (epithelioid spindle cells with nucleoli).
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stevenshen 离线
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stevenshen 离线
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