Materials and Methods:21 cases of pulmonary lymphoma, confirmed by lung histologic biopsy or clinical diagnosis with superficial lymphnode biopsy.
材料与方法：21例肺淋巴瘤均经肺或浅表淋巴结穿刺活检或手术证实。
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Result: Ultrasonic indirect sign of left larynx return nerve constricted must be depend on sign of left pulmonary constricted by lymphnode mass from below aortic arch 3 cases;