Gynecological Disorders — MCQs

Gynecological Disorders Indian Medical PG Practice Questions and MCQs

Question 101: Lichen sclerosus lesions are typically limited by which anatomical structure?

A. Vagina
B. Cervix
C. Labia minora
D. Labia majora (Correct Answer)

Explanation: **Explanation:** Lichen sclerosus (LS) is a chronic, inflammatory dermatosis that primarily affects the anogenital skin. The hallmark of this condition is that it **only involves keratinized squamous epithelium**. **Why Labia Majora is the correct answer:** Lichen sclerosus typically presents in a "figure-of-eight" or "hourglass" distribution, involving the vulva and the perianal area. The lesions are anatomically restricted to the **keratinized skin** of the vulva, which includes the labia majora, labia minora, and clitoral hood. It characteristically stops at the transition zone where the skin meets the non-keratinized mucous membranes. **Analysis of Incorrect Options:** * **Vagina & Cervix (Options A & B):** These structures are lined by **non-keratinized stratified squamous epithelium** (vagina) and columnar/squamous epithelium (cervix). Lichen sclerosus **never** involves the vagina. This is a crucial clinical differentiator from Lichen Planus, which frequently involves the vaginal mucosa. * **Labia Minora (Option C):** While the labia minora are frequently affected (often leading to resorption or "agglutination"), they do not represent the anatomical limit of the disease. The disease extends laterally to the labia majora and posteriorly to the anus. **NEET-PG High-Yield Pearls:** * **Clinical Presentation:** "Parchment-like" or "Cigarette paper" skin, pruritus, and porcelain-white plaques. * **Key Histology:** Hyperkeratosis, thinning of the epidermis (atrophy), and subepithelial **hyalinization** (homogenization of collagen). * **Treatment:** First-line therapy is **High-potency topical steroids** (e.g., Clobetasol propionate). * **Malignancy Risk:** There is a 3–5% lifetime risk of progression to **Squamous Cell Carcinoma (SCC)** of the vulva. Regular follow-up is mandatory.

Question 102: What is the most common gene mutation in uterine fibroids?

A. MED12 (Correct Answer)
B. COL4A5-A6
C. FH
D. None of the above

Explanation: **Explanation:** Uterine fibroids (leiomyomas) are the most common benign tumors of the female reproductive tract. Their pathogenesis is driven by genetic mutations, hormonal influences (estrogen and progesterone), and growth factors. **1. Why MED12 is Correct:** The **MED12 (Mediator Complex Subunit 12)** gene mutation is the most frequent genetic alteration found in uterine fibroids, occurring in approximately **70%** of cases. This mutation affects the Mediator complex, which regulates the transcription of RNA polymerase II, leading to dysregulated cell growth and extracellular matrix deposition in the myometrium. **2. Analysis of Incorrect Options:** * **COL4A5-A6:** Rearrangements involving these genes (located on chromosome Xq22) are associated with **Diffuse Leiomyomatosis**, a rare condition characterized by extensive smooth muscle proliferation in the uterus, esophagus, and tracheobronchial tree. * **FH (Fumarate Hydratase):** Mutations in the FH gene are associated with **Hereditary Leiomyomatosis and Renal Cell Cancer (HLRCC)** syndrome. While these patients develop multiple uterine fibroids, it is a specific syndromic association rather than the most common mutation in sporadic fibroids. **3. High-Yield Clinical Pearls for NEET-PG:** * **Most common cytogenetic abnormality:** Translocation between chromosomes 12 and 14 [t(12;14)]. * **HMGA2 Overexpression:** Often seen in fibroids with t(12;14) mutations. * **Risk Factors:** Early menarche, nulliparity, obesity, and African-American race (highest prevalence). * **Protective Factors:** Multiparity, late menarche, and smoking (due to decreased estrogen levels). * **Degenerations:** Hyaline degeneration is the most common; **Red degeneration** (carneous) is most common during pregnancy due to venous thrombosis.

Question 103: What is the classic mode of spread of gonococcus infection in pelvic inflammatory disease (PID)?

A. Direct spread (continuity) (Correct Answer)
B. Spread to adjacent organs
C. Hematogenous spread (bloodstream)
D. Lymphatic spread and via pelvic veins

Explanation: ### Explanation **Correct Answer: A. Direct spread (continuity)** The classic mode of spread for *Neisseria gonorrhoeae* in Pelvic Inflammatory Disease (PID) is **mucosal or canalicular spread**. The bacteria ascend from the lower genital tract (cervix) to the upper genital tract (endometrium, fallopian tubes, and pelvic peritoneum) by traveling along the continuous mucosal surfaces. This is often facilitated by the breakdown of the cervical mucus barrier during menstruation or by attaching to sperm, which act as vehicles for transport. **Why the other options are incorrect:** * **Option B:** While the infection eventually involves adjacent organs (like the ovaries), this is a consequence of the initial direct mucosal ascent rather than the primary "mode of spread." * **Option C:** Hematogenous spread is rare for PID. It is characteristic of **Genital Tuberculosis**, which typically reaches the fallopian tubes via the bloodstream from a primary pulmonary focus. * **Option D:** Lymphatic spread and spread via pelvic veins are the hallmark of **Puerperal Sepsis** (post-abortal or postpartum infections). In these cases, the infection spreads through the parametrium and pelvic cellular tissues rather than the mucosal lining. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site of PID:** Fallopian tubes (Salpingitis). * **Gold Standard Diagnosis:** Laparoscopy (shows tubal erythema and edema). * **Fitz-Hugh-Curtis Syndrome:** A complication of PID involving peri-hepatitis, characterized by "violin-string" adhesions between the liver capsule and the parietal peritoneum. * **Chlamydia vs. Gonorrhea:** *Chlamydia trachomatis* is the most common cause of PID overall, but *N. gonorrhoeae* typically presents with more acute and severe clinical symptoms.

Question 104: Gonococcus affects tubes mainly by which mode of spread?

A. Hematogenous spread
B. Lymphatic spread
C. Parametrial spread
D. None of the above (Correct Answer)

Explanation: **Explanation:** The correct answer is **None of the above** because *Neisseria gonorrhoeae* spreads to the fallopian tubes primarily via **intracanalicular (mucosal) spread**. **1. Why the Correct Answer is Right:** Gonococcus is a sexually transmitted pathogen that initially infects the cervix (cervicitis). From the endocervix, the bacteria ascend along the **mucosal surfaces** of the endometrium to reach the endosalpinx of the fallopian tubes. This upward migration is often facilitated by menstruation (retrograde flow) or the movement of sperm, to which the bacteria can attach. This leads to **acute salpingitis**, characterized by primary involvement of the tubal mucosa (endosalpingitis) and subsequent purulent exudate. **2. Why the Other Options are Incorrect:** * **Hematogenous spread (A):** This is the characteristic route for **Tuberculous Salpingitis**. While Gonococcus can enter the bloodstream (leading to Disseminated Gonococcal Infection), it does not use this route to reach the tubes. * **Lymphatic/Parametrial spread (B & C):** These routes are characteristic of **Post-abortal or Post-partum infections** (usually *Streptococcus* or *Staphylococcus*). In these cases, the infection spreads through the cellular connective tissues (parametrium) and lymphatics of the broad ligament, often sparing the tubal mucosa initially. **3. High-Yield Clinical Pearls for NEET-PG:** * **Most common site of Gonococcal infection in females:** Endocervix. * **Pathology:** Gonococcus causes **endosalpingitis**, leading to the fusion of plicae and the formation of a "follicular salpingitis," which increases the risk of ectopic pregnancy and infertility. * **Chlamydia vs. Gonococcus:** Both spread mucosally, but *Chlamydia trachomatis* is the most common cause of Pelvic Inflammatory Disease (PID) worldwide, whereas Gonococcus presents more acutely. * **Fitz-Hugh-Curtis Syndrome:** A complication of mucosal spread where the bacteria reach the liver capsule, causing "violin-string" adhesions.

Question 105: All of the following are true about Bacterial vaginosis except?

A. Vaginal pH is typically less than 4.5. (Correct Answer)
B. Nugent scoring can be used for diagnosis.
C. A fishy odor is noted after the addition of potassium hydroxide (KOH) to vaginal discharge.
D. The presence of clue cells is pathognomic.

Explanation: **Explanation:** Bacterial Vaginosis (BV) is a clinical syndrome resulting from the replacement of normal hydrogen peroxide-producing *Lactobacillus* species with high concentrations of anaerobic bacteria (e.g., *Gardnerella vaginalis*, *Mobiluncus*, and *Prevotella*). **1. Why Option A is the Correct Answer (False Statement):** In a healthy vaginal ecosystem, *Lactobacilli* maintain an acidic environment with a **pH < 4.5**. In BV, the loss of these bacteria leads to an **increase in vaginal pH (> 4.5)**. Therefore, a pH less than 4.5 is inconsistent with a diagnosis of BV. **2. Analysis of Other Options:** * **Option B (Nugent Scoring):** This is the **gold standard** for diagnosing BV. It is a Gram stain scoring system (0–10) that quantifies the relative concentration of *Lactobacilli* (large Gram-positive rods) versus *Gardnerella/Bacteroides* (small Gram-variable/negative rods). * **Option C (Whiff Test):** When 10% KOH is added to the discharge, it volatilizes amines (putrescine and cadaverine) produced by anaerobes, resulting in a characteristic "fishy odor." * **Option D (Clue Cells):** These are vaginal epithelial cells coated with coccobacilli, giving them a "stippled" or "shaggy" appearance. They are the most reliable microscopic predictor of BV. **Clinical Pearls for NEET-PG:** * **Amsel’s Criteria (Need 3 out of 4 for diagnosis):** 1. Homogeneous, thin, white-grey discharge. 2. Vaginal pH > 4.5. 3. Positive Whiff test (amine odor). 4. Presence of Clue cells (> 20% of epithelial cells). * **Treatment:** Oral or topical **Metronidazole** is the drug of choice (safe in pregnancy). * **Note:** BV is not considered a classic STI; therefore, routine treatment of the male partner is not recommended.

Question 106: Which of the following statements concerning fibroids is correct?

A. Use of GnRH analogues causes permanent reduction in size.
B. Pregnancy following myomectomy is about 80%.
C. Recurrence rate following myomectomy is about 30%.
D. Growth factors (IGF-1, EGF) stimulate myoma to grow. (Correct Answer)

Explanation: ### Explanation **Correct Option: D. Growth factors (IGF-1, EGF) stimulate myoma to grow.** The pathogenesis of uterine fibroids (leiomyomas) is multifactorial, involving genetic mutations (e.g., MED12), hormonal influences (estrogen and progesterone), and growth factors. Growth factors such as **Insulin-like Growth Factor-1 (IGF-1)**, **Epidermal Growth Factor (EGF)**, and Transforming Growth Factor-beta (TGF-β) are overexpressed in fibroid tissue. They act as mediators of estrogen and progesterone, promoting cellular proliferation and the accumulation of extracellular matrix, which leads to tumor growth. **Why other options are incorrect:** * **Option A:** GnRH analogues (e.g., Leuprolide) cause a hypoestrogenic state that reduces fibroid volume by 30–50%. However, this reduction is **temporary**. Once the medication is discontinued, the fibroids typically return to their original size within 3–6 months. * **Option B:** While myomectomy improves fertility in women with distorted uterine cavities, the pregnancy rate following the procedure is generally reported around **40–60%**, not 80%. Success depends heavily on the patient's age and other infertility factors. * **Option C:** The recurrence rate of fibroids after myomectomy is approximately **10–15%** at 10 years for a single fibroid, but can be higher (up to 25-30%) in cases of multiple fibroids. However, in the context of standard medical examinations, 30% is considered an overestimation for general recurrence; the focus is usually on the fact that recurrence is a significant risk. **High-Yield Clinical Pearls for NEET-PG:** * **Red Degeneration:** Most common degeneration during pregnancy (due to rapid growth and ischemia); presents with acute pain and localized tenderness. * **Hyaline Degeneration:** The most common type of degeneration overall. * **Medical Management:** Ulipristal acetate (Selective Progesterone Receptor Modulator) is highly effective but requires monitoring of liver function. * **Definitive Treatment:** Hysterectomy remains the only definitive cure for symptomatic fibroids in women who have completed their family.

Question 107: According to Shaw's classification, what defines the third-degree of uterine prolapse?

A. Cervix is above the introitus
B. Cervix is at the level of the introitus
C. Cervix is outside the introitus (Correct Answer)
D. Procidentia

Explanation: **Explanation:** Uterine prolapse is the downward displacement of the uterus into the vaginal canal due to the weakening of pelvic support structures (primarily the cardinal and uterosacral ligaments). **Shaw’s Classification** is a traditional clinical staging system used to grade the severity of this descent. **Why Option C is Correct:** According to Shaw’s Classification, **Third-degree prolapse** is defined as the state where the cervix has descended completely **outside the introitus**, but the body of the uterus remains within the vagina. This represents a significant failure of the primary pelvic supports. **Analysis of Incorrect Options:** * **Option A (First-degree):** The cervix descends below its normal level but remains **above the introitus**. It is often asymptomatic and discovered during routine examination. * **Option B (Second-degree):** The cervix descends to the **level of the introitus** (the vaginal opening) but does not protrude beyond it. * **Option D (Procidentia):** This is often referred to as **Fourth-degree prolapse**. In procidentia, the entire uterus (including the fundus) lies outside the introitus, and the vaginal walls are completely everted. **High-Yield Clinical Pearls for NEET-PG:** * **Primary Support:** The **Mackenrodt’s (Cardinal) ligaments** are the most important primary supports of the uterus. * **POP-Q System:** While Shaw’s is traditional, the **Pelvic Organ Prolapse Quantification (POP-Q)** system is the modern objective standard using fixed anatomical landmarks (Point Bp, Aa, etc.). * **Management:** For symptomatic prolapse, the definitive surgical treatment in post-menopausal women is **Vaginal Hysterectomy with Pelvic Floor Repair**. In women wishing to preserve the uterus, procedures like **Manchester repair** or **Fothergill’s operation** may be considered.

Question 108: Largest benign ovarian tumor is:

A. Serous cystadenoma
B. Mucinous cystadenoma (Correct Answer)
C. Dermoid cyst
D. Dysgerminoma

Explanation: **Explanation:** **Mucinous cystadenoma** is the correct answer because it is renowned for reaching massive proportions, often filling the entire abdominal cavity. These tumors are typically multilocular, lined by mucus-secreting epithelium (resembling endocervical or intestinal mucosa), and contain thick, gelatinous fluid. Their ability to grow silently and accumulate large volumes of mucoid material allows them to become the largest benign tumors in the human body, sometimes weighing over 20–30 kg. **Analysis of Incorrect Options:** * **Serous cystadenoma:** While these are the most common benign epithelial ovarian tumors, they are generally smaller than mucinous types and are more frequently bilateral (15-25%). * **Dermoid cyst (Mature Cystic Teratoma):** This is the most common ovarian germ cell tumor in young women. While they can grow large, they usually present at smaller sizes (5–10 cm) due to the risk of ovarian torsion or rupture. * **Dysgerminoma:** This is a malignant germ cell tumor. The question specifically asks for a *benign* tumor. Furthermore, dysgerminomas typically present as solid masses rather than the massive cystic structures seen in mucinous tumors. **NEET-PG High-Yield Pearls:** * **Largest Ovarian Tumor:** Mucinous cystadenoma. * **Most Common Benign Ovarian Tumor:** Serous cystadenoma. * **Most Common Ovarian Tumor in Pregnancy:** Dermoid cyst. * **Risk Factor:** Rupture of a mucinous tumor can lead to **Pseudomyxoma Peritonei** (jelly belly), characterized by the accumulation of mucinous ascites. * **Tumor Marker:** CA-125 is often elevated in epithelial tumors, though it is non-specific.

Question 109: Acute pain in fibroid is due to all except?

A. Torsion
B. Red degeneration
C. Hyaline degeneration (Correct Answer)
D. Sarcomatous change

Explanation: **Explanation:** The correct answer is **C. Hyaline degeneration.** In clinical practice, pain associated with uterine fibroids (leiomyomas) is typically caused by acute vascular compromise or rapid growth. **Why Hyaline Degeneration is the correct answer:** Hyaline degeneration is the **most common** type of degeneration in fibroids. It is a **chronic, asymptomatic** process where the smooth muscle cells are replaced by homogenous eosinophilic (hyaline) tissue. Because it occurs slowly and does not involve acute ischemia or inflammation, it is typically painless and usually an incidental finding on histopathology. **Analysis of Incorrect Options:** * **Torsion:** This occurs in **pedunculated subserosal fibroids**. The twisting of the pedicle cuts off the blood supply, leading to acute ischemia and sudden, severe abdominal pain (an abdominal emergency). * **Red Degeneration (Necrobiosis):** This is most common during the **second trimester of pregnancy**. Rapid growth of the fibroid outstrips its blood supply, leading to venous thrombosis and interstitial hemorrhage. It presents with acute pain, localized tenderness, and low-grade fever. * **Sarcomatous Change:** Although rare (<0.5%), malignant transformation into leiomyosarcoma involves rapid growth and tissue necrosis, which can cause significant pelvic pain. **NEET-PG High-Yield Pearls:** * **Most common degeneration overall:** Hyaline degeneration. * **Most common degeneration in pregnancy:** Red degeneration (due to protein denaturation/hemorrhage). * **Most common degeneration after menopause:** Calcific degeneration. * **Cystic degeneration** often follows hyaline degeneration as the tissue liquefies. * **Management of Red Degeneration:** Always managed **conservatively** with bed rest and analgesics; surgery is contraindicated during pregnancy.

Question 110: Ectopic pregnancy is common in which of the following conditions or patient groups?

A. Patients who have undergone tuboplasty
B. Patients with endometriosis
C. Patients using a Copper T intrauterine device
D. All of the above (Correct Answer)

Explanation: The fundamental mechanism behind ectopic pregnancy is any factor that **impairs or delays the transport of the fertilized ovum** through the fallopian tube to the uterine cavity. ### **Detailed Explanation** * **Tuboplasty (Option A):** Any previous tubal surgery (reconstructive tuboplasty or tubal ligation) is the **strongest risk factor** for ectopic pregnancy. Surgery can cause anatomical distortion, luminal narrowing, or damage to the endosalpinx (ciliary action), leading to embryo entrapment. * **Endometriosis (Option B):** Pelvic endometriosis leads to chronic inflammation and the formation of peritubal adhesions. These adhesions can kink the fallopian tube or cause extrinsic compression, hindering the normal migration of the zygote. * **Copper T IUD (Option C):** While IUDs are highly effective contraceptives, they prevent intrauterine pregnancy more effectively than extrauterine pregnancy. If a woman conceives with a Copper T in situ, the **relative risk** of that pregnancy being ectopic is significantly increased because the device prevents implantation only within the uterus. ### **NEET-PG High-Yield Pearls** * **Most Common Site:** The **Ampulla** of the fallopian tube (approx. 70-80%). * **Most Common Risk Factor:** Previous history of **Pelvic Inflammatory Disease (PID)**, specifically *Chlamydia trachomatis* infection. * **Highest Risk Factor:** Previous tubal surgery/tuboplasty. * **Classic Triad:** Amenorrhea, abdominal pain, and vaginal bleeding (present in only 50% of cases). * **Arias-Stella Reaction:** Hypersecretory endometrium with nuclear pleomorphism seen on biopsy; it is suggestive of pregnancy but not specific to ectopic pregnancy. * **Gold Standard Diagnosis:** Transvaginal Ultrasound (TVS) + Serial Serum β-hCG levels (Discriminatory zone: 1500–2000 mIU/mL).

Practice by Chapter

Abnormal Uterine Bleeding

Practice Questions

Endometriosis

Practice Questions

Adenomyosis

Practice Questions

Uterine Fibroids

Practice Questions

Ovarian Cysts

Practice Questions

Pelvic Inflammatory Disease

Practice Questions

Vulvovaginitis

Practice Questions

Pelvic Organ Prolapse

Practice Questions

Vulvar Disorders

Practice Questions

Benign Breast Diseases

Practice Questions

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