Objective To study the clinical and pathological features and differential diagnosis of polyarteritis nodosa (PAN) .

目的探讨结节多脉炎的临床、病理学特点及鉴别诊断。

Thickening of the arterial wall with malignant hypertension also produces a hyperplastic arteriolitis. The arteriole has an "onion skin" appearance.

恶压引起的脉增厚发生增生脉炎，脉呈洋葱皮样表现。

The lesions can be showed as arteriitis,arteriectasis,aneurysm and arterial stenosis stenosis..Ultrasonic cardiography is the first choice to detect the lesions.

冠状脉损害可表现为脉炎、脉扩张、脉瘤和脉狭窄等,超声心图是检测川崎病并发冠状脉损害的首选方法。