下列有关肉芽肿性唇炎说法正确的是（）
A.一旦发病，上、下唇均同时受累
B.好发于儿童及青少年
C.患者通常伴有红斑狼疮、类风湿关节炎、甲亢等免疫性疾病
D.组织病理主要表现为表皮和真皮的嗜酸性粒细胞的浸润
E.治疗上需寻找及去除慢性病灶，如扁桃体炎、龋齿、齿槽脓肿等，注意口腔清洁卫生
参考答案：E
解析：该病可发生于上唇或下唇，偶尔同时累及；多发生于中青年，儿童较少发病；患者一般健康状况良好，多无全身症状；组织病理主要表现为真皮、皮下组织慢性肉芽肿性炎细胞浸润，以淋巴细胞，浆细胞、上皮样细胞为主
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