显微镜下观察肿瘤组织原发灶的病理分期和分级作为组织学指标.用英语怎么说？

显微镜下观察肿瘤组织原发灶的病理分期和分级作为组织学指标.

Tumor stage and grade were recorded by microscopically observation as histological parameters.

tumor

n. 瘤；

例句
You can treat some tumor recurrence transplantation by radio frequency ablation.
有些复发肿瘤可以用射频消融治疗.

stage

n. 阶段，舞台，戏剧，驿站；vt.& vi. 上演，演出，筹办，举行，适于上演，坐公共马车旅

例句
The woman he had seen performing on stage was in actuality quite older than she had seemed.
他所见的那个在舞台上表演的女人实际年龄比看上去要大很多。

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。

grade

n. 等级，职别，成绩等级，年级；vt. 安排，依序排列，依等级排列，评估，评分；vi. 属于…等级，缓缓地变化或发展；

例句
South Point College does not grade the students' work.
南点学院不对学生的作业评分。

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。

recorded

v. 记录，录音，拍摄( record的过去式和过去分词 )，标明，发表正式（或法律方面的）声明，演奏音乐供录制；

例句
He recorded a time of 4 minutes 23, bettering the old record of 4-24...
他用时4分23秒，刷新了4分24秒的原纪录。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

microscopically

显微镜下；

例句
Tumor stage and grade were recorded by microscopically observation as histological parameters.
显微镜下观察肿瘤组织原发灶的病理分期和分级作为组织学指标.

observation

n. 观察，观察力，评论，观察所得；

例句
...careful observation of the movement of the planets...
对行星运动的仔细观测

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

histological

adj. 组织学的；

例句
Acantholysis and dyskeratosis are the typical histological findings.
棘层松解和角化不良是典型的病理改变.

parameters

n. 因素，特征，界限，（限定性的）因素( parameter的名词复数 )，<物><数>参量，参项，决定因素；

例句
The parameters within which life can be sustained on Earth are extraordinarily narrow.
地球上生命可以存活下来的地域范围是非常狭小的。