儿童腮腺炎的高频彩色血流声像图特征

The characteristics of high frequency color Doppler of parotitis in children

目的探讨儿童腮腺炎的高频二维及彩色血流声像图特征。方法应用高频彩色超声探查了33例腮腺炎患儿健侧与患侧腮腺及10例正常同龄儿腮腺,比较了肿大腮腺与正常腮腺的二维及彩色血流特征。结果小儿腮腺炎声像图特征可分为两大类:Ⅰ类为肿大腮腺弥漫性回声增强或减低,内部回声尚均匀或伴有腺内散在的肿大淋巴结低回声团,多见于流行性腮腺炎和腮腺非特异性淋巴结炎患儿;Ⅱ类为腺实质布满密集细小低回声区,严重者强弱不均,似有网络状改变,多见于复发性腮腺炎患儿。彩色血流信号在两类声像图中均增多,以Ⅱ型为甚,部分呈“火海征”,与正常腮腺明显不同。结论小儿腮腺炎声像图具有较特异性改变,且腺实质内彩色血流信号增多能较快判别炎症存在与否。

Objective To investigate the sonography and blood flow imaging features of parotitis in children.Methods Both sides of parotid in 33 children with parotitis and 10 normal children were observed with high frequency transducer. The two-dimensional and color flow imaging of the swollen and normal parotid were compared.Results The two-dimensional and color flow imaging features of parotitis in children could be divided into two groups: Type I :The echo of parotid was increased diffusely and the internal echo was homogeneous and accompanied by low echo of dispersed swollen lymph nodes in interior gland, It was mostly found in epidemic parotitis and nonspecific lymphnoditis of parotid TypeⅡ: The echo of interior gland was inhomogeneous and distributed by multiple hypoecho area.In serious cases hyperechoic and hypoecho area were mixed and appeared to be meshwork echogram.It was found in recurent parotitis in children. Color Doppler flow signals were both increased in two types, especially in typeⅡ. Some cases in typeⅡwere presented as a flame' sea sign.It was obviously different from normal parotid of children.Conclusion Parotitis in children has specific features, whether the inflammation exist or not could be quickly identified by the increased blood flow signals in the interior parotid.