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Difficulty: EasyGynecologic Oncology

A 59-year-old nulliparous woman is evaluated in the clinic for two days of bloody vaginal discharge. She has not had a menstrual period for seven years. Her past medical history is notable for obesity, hypertension, and diet-controlled type 2 diabetes mellitus. Speculum examination reveals a small amount of dark blood in the vaginal vault with normal-appearing cervical and vaginal mucosa. Bimanual examination is unremarkable. Which of the following is the most appropriate next step in management?

  1. A
    Measurement of serum CA-125
  2. B
    Pap test and HPV co-testing
  3. Endometrial biopsyAnswer
  4. D
    Reassurance and follow-up in 6 months
  5. E
    Initiation of cyclic progestin therapy

Answer

Endometrial biopsy
Postmenopausal bleeding is the classic presenting symptom of endometrial cancer and must be evaluated promptly. In a postmenopausal woman, any vaginal bleeding is abnormal. The initial evaluation focuses on ruling out endometrial hyperplasia and carcinoma. Endometrial biopsy is a highly sensitive and specific first-line diagnostic test for evaluating this condition, particularly in a patient who possesses significant risk factors for endometrial cancer, such as obesity, nulliparity, and type 2 diabetes mellitus. Transvaginal ultrasound to measure endometrial stripe thickness is also an acceptable initial test, but tissue sampling provides a definitive diagnosis.

Step-by-Step Solution

1
Identify the primary clinical presentation.
The patient is presenting with postmenopausal vaginal bleeding.
Any episode of vaginal bleeding in a postmenopausal woman is considered abnormal and highly suspicious for endometrial pathology.
2
Assess the patient's risk profile for gynecologic malignancies.
The patient is obese, nulliparous, and has type 2 diabetes mellitus, all of which are significant risk factors for endometrial cancer.
These conditions increase the peripheral conversion of androgens to estrogens, leading to a state of chronic unopposed estrogen exposure that promotes endometrial proliferation.
3
Determine the most appropriate initial diagnostic intervention.
An endometrial biopsy is required.
Tissue sampling is the standard of care to directly evaluate the endometrium for hyperplasia or carcinoma in the setting of postmenopausal bleeding.

Key Concept

Evaluation of postmenopausal bleeding
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Topics

Gynecologic Oncology

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