Infected cephalohematoma associated with meningitis is rarely reported.是什么意思？

Infected cephalohematoma associated with meningitis is rarely reported.

摘要感染性头血肿合并脑膜炎的病例是很少被报告的.

infected

adj. （伤口）被感染的；v. （受）传染( infect的过去式和过去分词 )，污染，影响；

例句
Bathe the infected area in a salt solution...
用盐水清洗感染的部位。

cephalohematoma

头颅血肿，头血肿；

例句
Infected cephalohematoma associated with meningitis is rarely reported.
摘要感染性头血肿合并脑膜炎的病例是很少被报告的.

associated

vt. 合伙，合营，联合，结合，联想；vi. 联系(associate的过去式和过去分词)，联盟，陪伴；n. 合伙人，伴侣，同志，联想物，附随物，会员集体；adj. （用于联合企业的名称）联合的，有关联的，联合的；

例句
Genetic abnormalities are more often associated with faults in paternal DNA than in maternal DNA.
相对于母本DNA,基因畸变往往更多地与父本DNA上的缺陷相关。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

meningitis

n. 脑膜炎；

例句
A variety of viral agents cause aseptic meningitis or meningoencephalitis.
各种病毒性因子可引起无菌性脑膜炎或脑膜脑炎.

is

vt.& vi. 是（be的三单形式；n. 存在；

例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

rarely

adv. 很少地，罕有地，极精彩地，珍奇地，绝佳地；

例句
Journalists are rarely admitted to the region.
新闻记者很少获准进入该地区。

reported

adj. 据报告的，据报导的，据传闻的；

例句
A Dr Matthew Owens was reported missing while on an expedition to north-eastern Turkey.
据报道，一位叫马修·欧文斯的博士在前往土耳其东北部考察的途中失踪了。