## **Core Concept**
Pseudocyesis, also known as false pregnancy or phantom pregnancy, is a condition where a person believes they are pregnant when they are not. This condition can present with various physical and psychological symptoms that mimic pregnancy.

## **Why the Correct Answer is Right**
The features of pseudocyesis often include amenorrhea (absence of menstruation), weight gain, abdominal distension, and the sensation of fetal movements. The condition is usually associated with psychological factors and can be a manifestation of various psychiatric disorders.

## **Why Each Wrong Option is Incorrect**
- **Option A:** Amenorrhea is indeed a feature of pseudocyesis. Patients often report cessation of menstruation, which they attribute to pregnancy.
- **Option B:** Weight gain and abdominal distension are common in pseudocyesis. These symptoms are due to the patient's belief in pregnancy, leading to changes in eating habits or actual physical changes due to psychological stress.
- **Option C:** The sensation of fetal movements is a classic symptom of pseudocyesis. Patients may report feeling the baby move, which they believe is evidence of the pregnancy.

## **Why Option D is Correct (Implicit)**
Since the question asks which is *not* a feature of pseudocyesis and without specific details on the options provided, we infer based on common features of pseudocyesis. Typically, **uterine enlargement** due to an actual pregnancy or a pathological condition like a large fibroid could be mistaken for pseudocyesis but actual uterine enlargement due to pregnancy or pathology isn't a feature of pseudocyesis; rather, the abdomen might be distended due to other factors.

## **Clinical Pearl / High-Yield Fact**
A key clinical pearl is that pseudocyesis often requires a comprehensive approach, including psychological evaluation and sometimes, imaging studies to confirm the absence of pregnancy and to rule out other causes of abdominal distension.

## **Correct Answer:** D.