In the majority of patients with cancer of unknown primary site, the diagnosis of advanced cancer is strongly suspected after the initial history and physical examination.

大多数原发灶不明的肿瘤病人，经过初步的病史和体格检查，基本能够确定晚期癌症的诊断。

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Methods:To study the clinical symptom and imaging presentation in 42 cases with primary tracheal tumor, which had been confirmed by bronchoscopy or postoperative pathologic examination.

方法：研究42例经各种影像检查并获得纤支镜、手术病理证实的原发性气管肿瘤的临床与影像表现。

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Conclusion: The incidence of SCCHN in our EC patients was 11.4%. Periodic otolaryngological examination and pharyngoscopy screening can detect SCCHNs early in patients with primary EC.

结论：食道癌患者中头颈部鳞状细胞癌的发病率为11.4%。定期对原发性食道癌患者进行耳鼻喉科检查和咽镜检查可以检出早期头颈部鳞状细胞癌。

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One recent examination of primary and secondary buyouts in Europe between 1989 and 2006 found that the median IRR for the secondary buyouts was 32 percent, not far below the 36 percent the primary buyouts earned (see figure below).

FORBES: Private Equity Deal Supply And Range Will Increase