Conditions with the lowest incidence were adrenocortical carcinoma, pheochromocytoma, and pituitary adenomas.是什么意思？

Conditions with the lowest incidence were adrenocortical carcinoma, pheochromocytoma, and pituitary adenomas.

其次为肾上腺皮质癌 、 嗜铬细胞瘤 、 垂体腺瘤.

conditions

n. （居住、工作或做事情的）环境，（影响某事发生的）物质环境，<保险>承保险别，条件( condition的名词复数 )，状况，健康状况，环境；

例句
They have been living under the most appalling conditions for two months.
他们已经在恶劣不堪的条件下生活两个月了。

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。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

lowest

adj. 最低的，最底下的，最小的；

例句
Oil prices fell this week to their lowest level in fourteen months, apparently because of over-production.
据说因为产量过剩，这个星期石油价格跌至14个月以来的最低点。

incidence

n. 发生率，影响范围，[数]关联，接合，[物]入射，入射角；

例句
The incidence of breast cancer increases with age.
乳腺癌的发病率随年龄增长而递增。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

carcinoma

n.

例句
Alpha - fetoproteinAFP - producing acinar cell carcinoma of the pancreas is a rare neoplasm.
胰脏的制造阿尔发胎儿蛋白腺胞细胞癌是一种很罕见的肿瘤.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

pituitary

n. （脑）垂体；

例句
This article analysed the clinical manifestations and endocrinological changes after pituitary apoplexy in 8 acromegalic patients.
本文分析8例暴发型肢端肥大症垂体卒中的临床表现及内分泌功能改变.

adenomas

n. 腺瘤，腺瘤( adenoma的名词复数 )；

例句
Type C closely resembles nonfunctioning pituitary adenomas with bitemporal hemianopsia and hypopituitarism.
C型类似无功能垂体腺瘤,除视野缺损外,还有双颞侧偏盲.