Examkin

Question

Difficulty: MediumGynecologic Oncology

A 61-year-old nulliparous woman comes to the physician because of vaginal bleeding for the past 2 weeks. She reached menopause 9 years ago and had not experienced any bleeding until now. Over the past month, she has also noticed new-onset bilateral breast tenderness. She has no other medical conditions and takes no medications. Her body mass index is 23 kg/m^2. Vital signs are within normal limits. Pelvic examination reveals a normal-appearing vagina and cervix. Bimanual examination palpates a 7-cm, firm, mobile right adnexal mass. Transvaginal ultrasound shows a complex right ovarian mass with both solid and cystic components, along with an endometrial thickness of 14 mm. Which of the following is the most appropriate next step in management?

  1. Endometrial biopsyAnswer
  2. B
    Total abdominal hysterectomy and bilateral salpingo-oophorectomy
  3. C
    Image-guided percutaneous needle biopsy of the ovarian mass
  4. D
    Reassurance and repeat transvaginal ultrasound in 3 months
  5. E
    Measurement of serum testosterone and dehydroepiandrosterone sulfate

Answer

The most appropriate next step in management is an endometrial biopsy to rule out endometrial carcinoma before planning surgical excision of the mass.
The correct next step is an endometrial biopsy. This patient's presentation of postmenopausal bleeding, new-onset breast tenderness, and a complex adnexal mass is highly suspicious for a granulosa cell tumor. These sex cord-stromal tumors secrete high levels of estrogen, which causes unopposed endometrial proliferation, leading to a thickened endometrial stripe (14 mm) and subsequent vaginal bleeding. Because there is a high risk of concurrent endometrial hyperplasia or true endometrial carcinoma (up to 10% of cases), an endometrial biopsy must be performed prior to surgical exploration. Diagnosing primary endometrial cancer preoperatively is critical, as it changes the required surgical staging (e.g., indicating the need for comprehensive pelvic and para-aortic lymph node dissection instead of just hysterectomy and bilateral salpingo-oophorectomy).

Step-by-Step Solution

1
Identify the clinical triad presented in the vignette.
The patient has postmenopausal bleeding, new-onset breast tenderness, and a complex adnexal mass.
Recognizing this constellation of symptoms is essential for determining the underlying etiology.
2
Correlate the symptoms with a specific pathophysiology.
The findings are highly suggestive of an estrogen-secreting sex cord-stromal tumor, most commonly an adult granulosa cell tumor.
Granulosa cell tumors secrete unopposed estrogen, which leads to breast tenderness and stimulates endometrial proliferation, resulting in the thickened endometrial stripe and bleeding.
3
Apply the standard of care guidelines for postmenopausal bleeding.
Any woman with postmenopausal bleeding and an endometrial stripe >4 mm requires histological evaluation.
Chronic unopposed estrogen exposure carries a 5% to 10% risk of concurrent endometrial carcinoma.
4
Determine the optimal sequence of interventions.
An endometrial biopsy must be performed prior to definitive surgical excision of the adnexal mass.
If primary endometrial cancer is identified on the biopsy, the surgical plan must be expanded to include comprehensive surgical staging, such as pelvic and para-aortic lymph node dissection, rather than standard excision alone.

Key Concept

Patients with suspected estrogen-secreting ovarian tumors (e.g., granulosa cell tumors) who present with postmenopausal bleeding and a thickened endometrium require an endometrial biopsy prior to surgical intervention to rule out concurrent endometrial cancer and properly plan surgical staging.
Estimated Time:1m 15s
Rate this question

Topics

Gynecologic Oncology

More questions from this topic