甲状舌管囊肿应与哪几种疾病鉴别() ["A．皮样囊肿","B．颏下淋巴结炎","C．异位甲状腺","D．囊状水瘤","E．鳃裂囊肿"]
远达性视网膜病变又称为________病。
下列哪些属于囊性水瘤临床表现() ["A．头颈部活动不受限","B．多有压迫症状","C．透光试验阴性","D．肿块质软","E．透光试验阳性"]
婴幼儿血维生素A水平低于________pg/L即构成维生素A缺乏症。
皮样囊肿() ["A．位于颈前正中","B．随吞咽上下运动","C．可伴耳内流脓","D．属先天性疾病","E．位于颈侧区"]
疟疾最常见的眼部并发症为________。
