结论：骨髓细胞形态学和X线检查是诊断nb的较好方法，B超、CT可提高肿瘤检出率。
Conclusion: Marrow morphology and X-ray were good methods for diagnosis of NB, B ultrasonic and CT can improve positive incidence.
但当MR信号与形态学特点结合时，其对良、恶性胸膜肿瘤的鉴别诊断价值则明显优于CT。
In combination with signal intensity and morphologic features, MRI is more useful and, therefore, superior to CT in differentiation of malignant from benign pleural tumor.
为研究皮肤良性肿瘤的形态学提供一种新的思路。
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