Gynecological Disorders Practice Questions

Q: What effect does smoking have on the formation of uterine leiomyoma?

Lowers the risk of leiomyoma formation.. **Explanation:** The correct answer is **B. Lowers the risk of leiomyoma formation.** **Mechanism of Action:** Uterine leiomyomas (fibroids) are **estrogen-dependent tumors**. Smoking has a well-documented **anti-estrogenic effect** on the female body. It induces the hepatic cytochrome P450 system (specifically CYP1A2), which shifts the metabolism of estradiol toward the production of 2-hydroxyestrone—a catechol estrogen with minimal biological activity. Additionally, smoking decreases body fat (reducing peripheral conversion of androgens to estrogen) and may lower levels of sex hormone-binding globulin (SHBG). This overall reduction in bioavailable estrogen leads to a decreased risk of developing fibroids in smokers. **Analysis of Incorrect Options:** * **Option A:** Incorrect. While smoking increases the risk of many pathologies (e.g., cervical cancer, cardiovascular disease), it paradoxically decreases the risk of estrogen-dependent conditions like fibroids and endometrial cancer. * **Option C:** Incorrect. Epidemiological studies consistently show a significant inverse relationship between cigarette smoking and the prevalence of leiomyomas. * **Option D:** Incorrect. Fibroids typically regress after menopause due to the natural decline in estrogen. Smoking does not increase risk in this group; rather, it is associated with an earlier onset of menopause. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors for Fibroids:** Early menarche, nulliparity, obesity (due to increased peripheral estrogen), and African-American race. * **Protective Factors:** Smoking, multiparity, and late menarche. * **The "Smoker’s Paradox":** Smoking decreases the risk of **Endometrial Cancer** and **Uterine Fibroids**, but significantly increases the risk of **Cervical Cancer** (due to local immunosuppression and nicotine accumulation in cervical mucus).

Q: Which of the following is NOT considered a risk factor for endometriosis?

Smoking. **Explanation:** Endometriosis is an estrogen-dependent inflammatory condition characterized by the presence of endometrial tissue outside the uterine cavity. Understanding its risk factors is crucial for NEET-PG, as they generally relate to increased exposure to endogenous estrogen. **Why Smoking is the Correct Answer:** Counterintuitively, **smoking** is considered a **protective factor** (or at least associated with a decreased risk) for endometriosis. Smoking has an anti-estrogenic effect; it decreases circulating estrogen levels by inhibiting the aromatase enzyme and increasing the hepatic metabolism of estradiol. Since endometriosis thrives on estrogen, the hypoestrogenic state induced by smoking reduces the risk of developing the disease. **Analysis of Other Options:** * **Nulliparity (A):** Pregnancy provides a "progesterone break" and halts menstruation. Nulliparous women have more uninterrupted menstrual cycles, increasing the risk of retrograde menstruation and estrogen exposure. * **Early Menarche (C):** Starting menstruation at a young age (e.g., <11 years) increases the total number of lifetime menstrual cycles and the cumulative duration of estrogen exposure, thereby increasing risk. * **Alcohol Consumption (D):** Alcohol is known to increase circulating estrogen levels and is a documented risk factor for the development of endometriosis. **High-Yield Clinical Pearls for NEET-PG:** * **Risk Factors:** Low BMI, short menstrual cycles ( 4 hours/week). * **Gold Standard Diagnosis:** Laparoscopy (visualizing "powder-burn" or "mulberry" lesions). * **Classic Triad:** Dysmenorrhea, Dyspareunia, and Dyschezia.

Q: What is the differential diagnosis for hyperemesis gravidarum?

All of the above. **Explanation:** Hyperemesis Gravidarum (HG) is a diagnosis of exclusion characterized by severe nausea and vomiting during pregnancy, leading to dehydration, electrolyte imbalance, and weight loss (>5% of pre-pregnancy weight). Because nausea and vomiting are common in pregnancy, clinicians must rule out other medical conditions before confirming HG. **Why "All of the above" is correct:** The differential diagnosis for HG is broad and encompasses gastrointestinal, genitourinary, and metabolic disorders: * **Gastritis & Peptic Ulcers:** These often present with epigastric pain and vomiting. Pregnancy can exacerbate underlying gastric issues. * **Urinary Tract Infection (UTI) / Pyelonephritis:** In pregnancy, a severe UTI or pyelonephritis often presents with systemic symptoms, including significant nausea and vomiting, alongside flank pain or dysuria. * **Reflux Esophagitis (GERD):** Due to the relaxation of the lower esophageal sphincter by progesterone, GERD is highly prevalent in pregnancy and can trigger persistent vomiting. **Other Differentials to Consider:** * **Metabolic:** Gestational thyrotoxicosis (hCG cross-reacts with TSH receptors) and Diabetic Ketoacidosis. * **Obstetric:** Molar pregnancy and Multiple gestations (both associated with abnormally high hCG levels). * **Hepatobiliary:** Cholecystitis and Appendicitis. **High-Yield Clinical Pearls for NEET-PG:** 1. **Peak Incidence:** Symptoms typically start between 4–9 weeks, peaking at 12 weeks, and usually resolve by 20 weeks. 2. **Wernicke’s Encephalopathy:** A rare but dreaded complication of HG due to **Vitamin B1 (Thiamine) deficiency**. Always replenish Thiamine *before* giving IV Glucose. 3. **Laboratory Findings:** Look for hypokalemia, hyponatremia, metabolic alkalosis, and **ketonuria** (a hallmark of HG severity). 4. **First-line Pharmacotherapy:** Pyridoxine (Vitamin B6) ± Doxylamine.

Q: Mycotic vulvovaginitis is commonly caused by which of the following fungi?

Candida. **Explanation:** **Mycotic vulvovaginitis**, also known as Vulvovaginal Candidiasis (VVC), is a common fungal infection of the lower female reproductive tract. **1. Why Candida is Correct:** The vast majority (80–90%) of mycotic vulvovaginitis cases are caused by **Candida albicans**. It is a dimorphic fungus that exists as part of the normal vaginal flora in 20% of asymptomatic women. Infection occurs when an overgrowth is triggered by factors like pregnancy, diabetes mellitus, or broad-spectrum antibiotic use. Clinically, it presents with intense pruritus and a characteristic **thick, white, curd-like (cottage cheese) discharge**. **2. Why the Other Options are Incorrect:** * **Aspergillus:** This is a filamentous fungus primarily associated with pulmonary infections (Aspergillosis) or otomycosis; it does not typically cause vaginitis. * **Cryptococcus:** An encapsulated yeast usually causing meningitis or pneumonia in immunocompromised patients (e.g., HIV/AIDS). It is not a causative agent for vulvovaginitis. * **Pseudomonas:** This is a **Gram-negative bacterium**, not a fungus. While it can cause skin or urinary tract infections, it is not a primary cause of vaginitis. **3. High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis:** Gold standard is a **Whiff test (negative)** and microscopy showing **pseudohyphae** on a 10% KOH mount. * **Vaginal pH:** In Candidiasis, the vaginal pH remains **normal ( 4.5). * **Drug of Choice:** Oral **Fluconazole** (150 mg single dose) or topical Clotrimazole. * **Non-albicans species:** *Candida glabrata* is the most common non-albicans species and is often resistant to azoles.

Q: A young woman presents with pain in the lower abdomen. Her last menstrual period was 2 weeks ago, and she denies any history of fever or leukocytosis. What is the most likely diagnosis?

Mittleschmerz. ### Explanation **Correct Answer: B. Mittelschmerz** **Why it is correct:** The clinical presentation is classic for **Mittelschmerz** (German for "middle pain"). This refers to mid-cycle ovulatory pain. 1. **Timing:** The patient’s last menstrual period was 2 weeks ago. In a typical 28-day cycle, ovulation occurs around Day 14. 2. **Pathophysiology:** The pain is attributed to the rapid expansion of the dominant follicle or the irritation of the peritoneum by follicular fluid/blood released during ovulation. 3. **Clinical Features:** It is typically sudden-onset, unilateral lower abdominal pain that is self-limiting and occurs in the absence of systemic symptoms like fever or leukocytosis. **Why the other options are incorrect:** * **A. Ectopic pregnancy:** This usually presents with a history of amenorrhea (6–8 weeks), vaginal bleeding, and a positive pregnancy test. A period only 2 weeks ago makes this highly unlikely. * **C. Acute intermittent obstruction:** This would typically present with colicky pain, vomiting, and abdominal distension, rather than localized pelvic pain specifically at the mid-cycle point. * **D. Dysuria:** This refers to painful urination, usually associated with Urinary Tract Infections (UTI). While it causes discomfort, it does not explain mid-cycle abdominal pain in a patient without fever or urinary symptoms. **High-Yield Clinical Pearls for NEET-PG:** * **Diagnosis of Exclusion:** Mittelschmerz is diagnosed clinically after ruling out more serious causes like appendicitis or ectopic pregnancy. * **Management:** Reassurance and NSAIDs are the first-line treatments. * **Key Differentiator:** Unlike Pelvic Inflammatory Disease (PID) or Appendicitis, Mittelschmerz presents with a **normal white blood cell (WBC) count** and **no fever**. * **USG Finding:** May show a small amount of free fluid in the Pouch of Douglas (POD) during the mid-cycle.

Q: In ectopic pregnancy, which of the following is NOT useful for diagnosis?

Flat abdomen. In ectopic pregnancy, timely diagnosis is critical to prevent life-threatening hemorrhage. The correct answer is **Flat Abdomen (X-ray)** because it lacks the sensitivity and specificity required to visualize early pregnancy or pelvic pathology. ### Why "Flat Abdomen" is the Correct Answer: A flat plate (X-ray) of the abdomen is primarily used to detect bowel obstruction (air-fluid levels) or perforation (pneumoperitoneum). It cannot visualize soft tissue structures like a gestational sac or adnexal mass. While a massive hemoperitoneum might show "ground-glass" haziness, it is non-specific and provides no diagnostic value compared to modern imaging. ### Why the other options are useful: * **Beta-hCG:** This is the biochemical marker of choice. In ectopic pregnancy, levels often fail to double every 48 hours (suboptimal rise). The "Discriminatory Zone" (1500–2000 mIU/mL) is the level at which a gestational sac should be visible on TVS. * **USG (Transvaginal Sonography):** This is the gold standard imaging modality. It helps identify an empty uterus ("Pseudosac"), an adnexal mass (e.g., "Bagel sign" or "Blob sign"), or free fluid in the Pouch of Douglas (POD). * **Culdocentesis:** Though largely replaced by USG, it remains a valid diagnostic tool in resource-limited settings. A positive result (non-clotting blood) indicates hemoperitoneum, suggesting a ruptured ectopic pregnancy. ### NEET-PG High-Yield Pearls: * **Classic Triad:** Amenorrhea, abdominal pain, and vaginal bleeding (present in only 50% of cases). * **Most Common Site:** Ampulla of the Fallopian tube. * **Arias-Stella Reaction:** Hypersecretory endometrium seen on curettage, indicating pregnancy but not specific to ectopic. * **Gold Standard for Diagnosis:** Laparoscopy (allows for both diagnosis and definitive management).

Q: Which of the following is an indication for using mifepristone?

Fibroid uterus. **Explanation:** **Mifepristone (RU-486)** is a potent competitive receptor antagonist of progesterone. Since progesterone is essential for the growth of uterine leiomyomas (fibroids), mifepristone acts by blocking these receptors, leading to a reduction in tumor volume (up to 25–50%) and significant improvement in symptoms like menorrhagia. It is particularly useful as a preoperative medical therapy to reduce fibroid size and correct anemia. **Analysis of Options:** * **Fibroid uterus (Correct):** Mifepristone inhibits the proliferation of leiomyoma cells and reduces uterine blood flow, making it an effective medical management option. * **Ectopic pregnancy:** The primary medical management for unruptured ectopic pregnancy is **Methotrexate** (a folate antagonist). Mifepristone is not used alone for ectopic pregnancy as it does not reliably terminate extrauterine gestations. * **Molar pregnancy:** The standard treatment is **Suction and Evacuation**. Medical induction with mifepristone is contraindicated due to the high risk of hemorrhage and the potential for embolization of trophoblastic tissue. * **Habitual abortion:** Mifepristone is an abortifacient; using it in a patient with recurrent pregnancy loss would be counterproductive and harmful. **High-Yield Clinical Pearls for NEET-PG:** * **Mechanism:** Competitive progesterone receptor modulator (SPRM). * **Other Indications:** Medical Abortion (combined with Misoprostol), Cervical ripening, Induction of labor (in IUD), and Cushing’s Syndrome (blocks glucocorticoid receptors). * **Dose for Fibroids:** Usually 10–25 mg daily for 3–6 months. * **Side Effect:** Endometrial hyperplasia (due to unopposed estrogenic effect on the endometrium during long-term use).

Question 1

What effect does smoking have on the formation of uterine leiomyoma?

Accepted Answer

Lowers the risk of leiomyoma formation.

Answer

Increases the risk of fibroid uterus.

Answer

No change in risk compared to the general population.

Answer

Increases the risk of fibroid uterus specifically in postmenopausal women.

Question 2

Which of the following is NOT considered a risk factor for endometriosis?

Accepted Answer

Smoking

Answer

Nulliparity

Answer

Early menarche

Answer

Alcohol consumption

Question 3

What is the differential diagnosis for hyperemesis gravidarum?

Accepted Answer

All of the above

Answer

Gastritis

Answer

Urinary Tract Infection (UTI)

Answer

Reflux esophagitis

Question 4

Mycotic vulvovaginitis is commonly caused by which of the following fungi?

Accepted Answer

Candida

Answer

Aspergillus

Answer

Cryptococcus

Answer

Pseudomonas

Question 5

A young woman presents with pain in the lower abdomen. Her last menstrual period was 2 weeks ago, and she denies any history of fever or leukocytosis. What is the most likely diagnosis?

Accepted Answer

Mittleschmerz

Answer

Ectopic pregnancy

Answer

Acute intermittent obstruction

Answer

Dysuria

Question 6

A 22-year-old woman presents with sudden onset of severe lower abdominal pain. Physical examination reveals no masses but severe tenderness in the right lower quadrant. Pelvic examination shows no lesions of the cervix or vagina. Bowel sounds are present. An abdominal ultrasound scan shows a 4-cm focal enlargement of the proximal right fallopian tube. A dilation and curettage procedure reveals decidua only from the endometrial cavity. Which of the following laboratory findings is most likely to be reported for this patient?

Accepted Answer

Detection of human chorionic gonadotropin in serum

Answer

Cervical culture positive for Neisseria gonorrhoeae

Answer

69, XXY karyotype on decidual tissue cells

Answer

Pap smear showing pseudo hyphae of Candida

Question 7

In ectopic pregnancy, which of the following is NOT useful for diagnosis?

Accepted Answer

Flat abdomen

Answer

Culdocentesis

Answer

USG

Answer

Beta HCG

Question 8

Which of the following is an indication for using mifepristone?

Accepted Answer

Fibroid uterus

Answer

Ectopic pregnancy

Answer

Molar pregnancy

Answer

Habitual abortion

Question 9

Which of the following is NOT a type of cyst seen in the vagina?

Accepted Answer

Gartner's duct cyst

Answer

Gartner's cyst

Answer

Bartholin's cyst

Answer

Inclusion cyst

Question 10

Which uterine malformation is most commonly associated with renal anomalies?

Accepted Answer

Unicornuate

Answer

Bicornuate

Answer

Septate

Answer

Didelphys

Gynecological Disorders — MCQs

Gynecological Disorders — MCQs

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