Gynecologic Oncology Practice Questions

Q: Which of the following indications usually warrants the institution of single-agent chemotherapy following evacuation of a hydatidiform mole?

A rise in hCG titers. In the management of Gestational Trophoblastic Disease (GTD), the primary goal after suction evacuation is the monitoring of serum β-hCG levels to detect malignant transformation into Gestational Trophoblastic Neoplasia (GTN). ### **Explanation of the Correct Answer** **Option A (A rise in hCG titers)** is a definitive FIGO criterion for diagnosing post-molar GTN. Specifically, a rise of **10% or greater** across three consecutive weekly titers (days 1, 7, and 14) indicates active trophoblastic proliferation. Once GTN is diagnosed, chemotherapy (usually single-agent Methotrexate or Actinomycin-D for low-risk disease) is mandatory to prevent local invasion and distant metastasis. ### **Analysis of Incorrect Options** * **Option B:** A plateau of hCG is indeed an indication for chemotherapy, but the duration must be for **at least 3 weeks** (4 values on days 1, 7, 14, and 21), not just 1 week. * **Option C:** This represents a normal physiological recovery. If hCG returns to normal, the patient is monitored but does not require chemotherapy. * **Option D:** The appearance of liver metastasis classifies the patient as **High-Risk GTN** (WHO Score ≥7). Such cases warrant **multi-agent chemotherapy** (e.g., EMA-CO regimen) rather than the single-agent therapy specified in the question. ### **High-Yield Clinical Pearls for NEET-PG** * **FIGO Criteria for GTN:** 1. hCG plateau for 4 values over 3 weeks. 2. hCG rise (≥10%) for 3 values over 2 weeks. 3. Persistence of hCG 6 months after evacuation. 4. Histological diagnosis of Choriocarcinoma. * **Investigation of Choice for Follow-up:** Serial quantitative serum β-hCG. * **Contraception:** Combined Oral Contraceptive Pills (COCs) are preferred after evacuation once hCG levels normalize; avoid IUCDs until hCG is undetectable due to the risk of perforation.

Q: What is the WHO prognostic score for high-risk gestational trophoblastic neoplasia (GTN)?

>= 7. **Explanation:** Gestational Trophoblastic Neoplasia (GTN) is staged using the **FIGO Staging and WHO Scoring System**. Unlike other cancers, GTN management is determined by a "Prognostic Risk Score" rather than just anatomical spread. This score (0-4 points per factor) evaluates variables such as age, antecedent pregnancy, interval from index pregnancy, pretreatment hCG levels, largest tumor size, site and number of metastases, and previous chemotherapy failure. * **Correct Answer (B):** A total score of **≥ 7** is classified as **High-Risk GTN**. These patients have a higher risk of developing resistance to single-agent chemotherapy and are therefore treated primarily with **multi-agent chemotherapy** (typically the EMA-CO regimen). * **Incorrect Options (A, C, D):** A score of **0–6** is classified as **Low-Risk GTN**, usually treated with single-agent chemotherapy (Methotrexate or Actinomycin-D). Scores of 10 or 15 do not represent the standard threshold for high-risk classification, though a score ≥ 13 is sometimes used to denote "ultra-high risk" in specialized centers. **High-Yield Clinical Pearls for NEET-PG:** 1. **Low Risk (0-6):** Single-agent chemo (Methotrexate is the first choice). 2. **High Risk (≥ 7):** Multi-agent chemo (EMA-CO: Etoposide, Methotrexate, Actinomycin-D, Cyclophosphamide, Oncovin/Vincristine). 3. **Most Important Prognostic Factor:** The most significant factor in the scoring system is the **previous failure of chemotherapy**. 4. **Commonest Site of Metastasis:** The **Lungs** (80%), followed by the vagina (30%). 5. **Choriocarcinoma** is the most common histological type of GTN following a term pregnancy.

Q: All of the following are known risk factors for the development of endometrial carcinoma except?

Early menopause. **Explanation:** The development of endometrial carcinoma (specifically Type I) is primarily driven by **unopposed estrogen** stimulation. Estrogen promotes endometrial proliferation, while progesterone acts as a protective agent by inducing differentiation and shedding. **Why Early Menopause is the Correct Answer:** Early menopause is **not** a risk factor; in fact, **late menopause** (after age 52-55) is a significant risk factor. A longer reproductive lifespan means the endometrium is exposed to estrogen for a greater number of years. Conversely, early menopause reduces the total duration of estrogen exposure, thereby decreasing the risk of endometrial cancer. **Analysis of Incorrect Options:** * **Obesity:** This is a major risk factor. In obese postmenopausal women, androstenedione is converted into estrone by the enzyme **aromatase** in peripheral adipose tissue, leading to high levels of endogenous estrogen. * **Family History:** Genetic predisposition plays a role, most notably in **Lynch Syndrome** (Hereditary Non-Polyposis Colorectal Cancer - HNPCC), which carries a 40-60% lifetime risk of endometrial cancer. * **Hormone Replacement Therapy (HRT):** The use of **unopposed estrogen** therapy in women with an intact uterus significantly increases the risk. To mitigate this, progesterone must always be added to the regimen. **High-Yield Clinical Pearls for NEET-PG:** * **Protective Factors:** Combined Oral Contraceptive Pills (COCPs), multiparity, smoking (decreases estrogen levels, though not recommended), and physical activity. * **PCOS:** A common cause of chronic anovulation leading to unopposed estrogen and increased cancer risk. * **Tamoxifen:** Used in breast cancer treatment, it acts as an estrogen agonist on the endometrium, increasing the risk of hyperplasia and carcinoma. * **Most Common Histology:** Endometrioid adenocarcinoma.

Q: Which of the following statements regarding sarcoma botryoides is FALSE?

It is commonly found in elderly women.. **Explanation:** **Sarcoma botryoides** (Embryonal Rhabdomyosarcoma) is a highly malignant tumor derived from primitive mesenchymal cells. 1. **Why Option C is the Correct Answer (The False Statement):** Sarcoma botryoides is a tumor of **infancy and early childhood**, typically occurring in girls **under the age of 5** (peak incidence at 2–3 years). It is almost never seen in elderly women. In older patients, the most common vaginal malignancy is Squamous Cell Carcinoma. 2. **Analysis of Other Options:** * **Option A (Typically seen in the vagina):** In infants and young children, the most common site is the **vagina**. (Note: In older children/adolescents, it may occur in the cervix or urinary bladder). * **Option B (Grape-like clusters):** The name "botryoides" is derived from the Greek word *botrys* (cluster of grapes). Grossly, the tumor appears as edematous, polypoid, friable masses resembling grapes protruding from the introitus. * **Option D (Type of adenocarcinoma):** This is technically a **distractor** in the original question format, as Sarcoma botryoides is a **mesenchymal tumor (sarcoma)**, not an epithelial tumor (adenocarcinoma). However, in the context of identifying the "most false" or primary clinical characteristic for NEET-PG, the age demographic (Option C) is the classic "false" fact tested. **High-Yield Clinical Pearls for NEET-PG:** * **Histology:** Look for the **Cambium layer** (a dense zone of undifferentiated tumor cells immediately beneath the vaginal epithelium). * **Marker:** Cells often show cross-striations and are positive for **Desmin**, **Myogenin**, and **Myo-D1**. * **Presentation:** Often presents as blood-stained vaginal discharge or a "grape-like" mass protruding from the vagina in a toddler.

Q: Invasive molar tissue is most commonly found in which of the following locations?

Myometrium. ### Explanation **Invasive Mole (Chorioadenoma Destruens)** is a type of Gestational Trophoblastic Neoplasia (GTN) characterized by the presence of hydropic chorionic villi that invade deep into the uterine wall. **1. Why Myometrium is Correct:** The hallmark of an invasive mole is the **direct extension and penetration** of molar tissue into the **myometrium** or its vascular spaces. Unlike a complete or partial hydatidiform mole, which is confined to the uterine cavity, an invasive mole is locally aggressive. It develops in approximately 15% of patients following the evacuation of a complete mole. **2. Analysis of Incorrect Options:** * **Vaginal wall:** While the vagina is the most common site for *metastatic* GTN (specifically Choriocarcinoma), an invasive mole is primarily a locally invasive process within the uterus. * **Ovary:** The ovaries are frequently affected by theca lutein cysts due to high hCG levels, but they are not a primary or common site for the invasion of molar villi. * **Liver:** The liver is a site for distant metastasis, typically seen in advanced stages of Choriocarcinoma (FIGO Stage IV). Invasive moles rarely metastasize to distant organs like the liver. **3. Clinical Pearls for NEET-PG:** * **Diagnostic Feature:** The presence of **chorionic villi** within the myometrium distinguishes an invasive mole from Choriocarcinoma (which lacks villi). * **Clinical Presentation:** Persistent bleeding and a sub-involuted uterus following molar evacuation, often with plateauing or rising hCG levels. * **Risk of Rupture:** Deep myometrial invasion can lead to uterine perforation and life-threatening intraperitoneal hemorrhage. * **Treatment:** It is highly sensitive to chemotherapy (usually Methotrexate). Hysterectomy is reserved for uncontrolled hemorrhage or patients who have completed childbearing.

Q: A patient who underwent surgery for stage IA grade 3 carcinoma of the endometrium requires postoperative adjuvant therapy. What is the preferred mode of treatment?

Vaginal brachytherapy. **Explanation:** The management of endometrial carcinoma depends on the risk of recurrence, which is determined by the stage, grade, and depth of myometrial invasion. **Why Vaginal Brachytherapy (VBT) is correct:** According to the FIGO and NCCN guidelines, **Stage IA Grade 3** (High-intermediate risk) involves a high-grade tumor limited to the inner half of the myometrium. In these cases, the primary site of recurrence is the **vaginal vault**. VBT is the preferred adjuvant treatment because it provides excellent local control at the vault while minimizing radiation exposure to the bladder and rectum, thereby reducing long-term morbidity compared to external beam radiation. **Why other options are incorrect:** * **A & B (External Pelvic/Field Radiation):** EBRT is generally reserved for Stage IB Grade 3 or Stage II disease (cervical involvement). While it reduces pelvic recurrence, it does not improve overall survival in Stage IA and carries a higher risk of gastrointestinal and urinary toxicity. * **D (Observation):** Observation is only appropriate for Stage IA Grade 1 or 2 tumors with no other risk factors. Grade 3 histology is an independent risk factor that necessitates adjuvant therapy to prevent local recurrence. **Clinical Pearls for NEET-PG:** * **Stage IA:** Tumor limited to the endometrium or 60, Grade 3, Lymphovascular space invasion (LVSI), and outer 1/3 myometrial invasion. * **Gold Standard Surgery:** Total Laparoscopic/Abdominal Hysterectomy + Bilateral Salpingo-oophorectomy (TLH/TAH + BSO) with lymphadenectomy or sentinel lymph node mapping.

Q: A 35-year-old woman is diagnosed with CIN grade III on colposcopic biopsy. Which of the following are appropriate treatment options?

Cold knife conization, Simple hysterectomy, LEEP. **Explanation:** **1. Why Option D is Correct:** CIN III (Cervical Intraepithelial Neoplasia Grade III) is a **pre-invasive** high-grade squamous intraepithelial lesion (HSIL). The goal of treatment is to remove the transformation zone and the lesion. * **LEEP (Loop Electrosurgical Excision Procedure):** The most common outpatient procedure for CIN III, providing both treatment and a tissue specimen for margin analysis. * **Cold Knife Conization (CKC):** Preferred when the lesion extends into the endocervical canal or if microinvasion is suspected, as it provides cleaner margins than LEEP. * **Simple Hysterectomy:** Considered an appropriate definitive treatment for women who have completed childbearing, especially if there are concomitant gynecological issues (e.g., fibroids) or if the margins of a previous cone biopsy were positive. **2. Why Other Options are Incorrect:** * **Radical Hysterectomy (Options A, B, and C):** This involves the removal of the uterus, parametrium, and upper vagina. It is indicated for **invasive cervical cancer** (Stage IA2 to IIA), not for pre-invasive lesions like CIN III. Using it for CIN III is considered "over-treatment." * **Laparoscopic Assisted Hysterectomy (Option A):** While a route for hysterectomy, the presence of "Radical Hysterectomy" in the same option makes it incorrect for CIN III management. **3. NEET-PG High-Yield Pearls:** * **Gold Standard Diagnosis:** Colposcopy-directed biopsy. * **Management Strategy:** "See and Treat" (LEEP) is acceptable for HSIL/CIN III in non-pregnant women over 25. * **Pregnancy:** If CIN III is diagnosed during pregnancy, management is conservative (repeat colposcopy/cytology); treatment is deferred until 6–12 weeks postpartum unless invasive cancer is suspected. * **Follow-up:** Post-treatment, patients require HPV testing or co-testing at 12 and 24 months before returning to routine screening.

Q: A 55-year-old menopausal woman complains of postcoital bleeding. What important cause of such bleeding should be ruled out?

Carcinoma of the cervix. **Explanation:** **1. Why Carcinoma of the Cervix is the correct answer:** In any woman presenting with **postcoital bleeding** (bleeding triggered by vaginal intercourse), **Carcinoma of the Cervix** is considered the most critical diagnosis to rule out until proven otherwise. This occurs because the cervical surface becomes friable due to neovascularization and erosive growth associated with malignancy. When the penis or a speculum contacts the fragile, cancerous tissue, it causes immediate bleeding. In the context of NEET-PG, postcoital bleeding is the **classic clinical hallmark** of cervical cancer. **2. Why the other options are incorrect:** * **Carcinoma of the Endometrium:** This typically presents as **postmenopausal bleeding (PMB)** that is spontaneous and unrelated to intercourse. While it is a major concern in a 55-year-old, it does not classically present as postcoital bleeding. * **Fibroid Uterus:** These are benign smooth muscle tumors. They usually cause **heavy menstrual bleeding (menorrhagia)** or pelvic pressure. They rarely cause postcoital bleeding unless a pedunculated submucosal fibroid is prolapsing through the cervix. * **Adenomyosis:** This condition involves endometrial tissue within the myometrium. It typically presents with **secondary dysmenorrhea** and menorrhagia in premenopausal women, not postcoital bleeding in menopause. **Clinical Pearls for NEET-PG:** * **Most common cause** of postcoital bleeding in clinical practice: Cervical ectropion or Cervicitis. * **Most important/sinister cause** to rule out: Carcinoma of the cervix. * **Initial Investigation:** Per-speculum (PS) examination to visualize the cervix, followed by a Pap smear or biopsy if a growth is visible. * **Triad of Advanced Cervical Cancer:** Unilateral leg edema, sciatic pain, and hydronephrosis.

Question 1

Which of the following indications usually warrants the institution of single-agent chemotherapy following evacuation of a hydatidiform mole?

Accepted Answer

A rise in hCG titers

Answer

A plateau of hCG titers for 1 week

Answer

Return of hCG titer to normal at 6 weeks after evacuation

Answer

Appearance of liver metastasis

Question 2

What is the WHO prognostic score for high-risk gestational trophoblastic neoplasia (GTN)?

Accepted Answer

>= 7

Answer

>= 6

Answer

>= 10

Answer

>= 15

Question 3

All of the following are known risk factors for the development of endometrial carcinoma except?

Accepted Answer

Early menopause

Answer

Obesity

Answer

Family history

Answer

Use of hormone replacement therapy

Question 4

Which of the following statements regarding sarcoma botryoides is FALSE?

Accepted Answer

It is commonly found in elderly women.

Answer

It is typically seen in the vagina.

Answer

Characteristic presentation includes grape-like clusters.

Answer

It is a type of adenocarcinoma.

Question 5

In perimenopausal women with menorrhagia, all carcinomas are ruled out except:

Accepted Answer

Ovary

Answer

Uterus

Answer

Fallopian tube

Answer

Endometrium

Question 6

Invasive molar tissue is most commonly found in which of the following locations?

Accepted Answer

Myometrium

Answer

Vaginal wall

Answer

Ovary

Answer

Liver

Question 7

A patient who underwent surgery for stage IA grade 3 carcinoma of the endometrium requires postoperative adjuvant therapy. What is the preferred mode of treatment?

Accepted Answer

Vaginal brachytherapy

Answer

External pelvic radiation

Answer

External field radiation

Answer

Observation

Question 8

A 35-year-old woman is diagnosed with CIN grade III on colposcopic biopsy. Which of the following are appropriate treatment options?

Accepted Answer

Cold knife conization, Simple hysterectomy, LEEP

Answer

Cold knife conization, Simple hysterectomy, Radical hysterectomy, Laparoscopic assisted hysterectomy

Answer

Simple hysterectomy, Radical hysterectomy, LEEP

Answer

Cold knife conization, Radical hysterectomy, LEEP

Question 9

A 55-year-old menopausal woman complains of postcoital bleeding. What important cause of such bleeding should be ruled out?

Accepted Answer

Carcinoma of the cervix

Answer

Carcinoma of the endometrium

Answer

Fibroid uterus

Answer

Adenomyosis

Question 10

Which of the following statements is true about hydatidiform mole?

Accepted Answer

Hysterectomy in selected cases.

Answer

Always associated with raised uterine size for gestational age.

Answer

Raised hCG.

Answer

Chemotherapy is the treatment of choice.

Gynecologic Oncology — MCQs

Gynecologic Oncology — MCQs

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