All of the following are prognostic factors of carcinoma endometrium, EXCEPT:
**Core Concept**
Carcinoma endometrium is a type of cancer that originates in the endometrium, the lining of the uterus. Prognostic factors are variables that help predict the outcome or likelihood of a disease. In the context of carcinoma endometrium, these factors can guide treatment decisions and patient counseling.
**Why the Correct Answer is Right**
Prognostic factors of carcinoma endometrium include **histological grade**, **depth of myometrial invasion**, **lymph node status**, and **cervical stromal invasion**. These factors are evaluated to determine the stage and aggressiveness of the cancer, which in turn influences the treatment plan and overall prognosis. For example, a higher histological grade indicates a more aggressive tumor, while deeper myometrial invasion increases the risk of recurrence.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because **age of the patient** is a risk factor for developing carcinoma endometrium, but not a prognostic factor once the cancer is diagnosed.
**Option B:** This option is incorrect because **tumor size** is an important prognostic factor in many cancers, but in carcinoma endometrium, it is not as critical as other factors like histological grade and depth of myometrial invasion.
**Option D:** This option is incorrect because **hormone receptor status** is an important prognostic factor in carcinoma endometrium, as it influences the choice of adjuvant therapy and predicts response to hormone therapy.
**Clinical Pearl / High-Yield Fact**
When evaluating a patient with carcinoma endometrium, remember that a **histological grade of 3** indicates a poorly differentiated tumor with a high likelihood of recurrence, and warrants aggressive treatment.
**Correct Answer:** A.