Gynecologic Cytology — MCQs
Which one of the following is NOT a characteristic feature of bacterial vaginosis?
Which of the following conditions is associated with the detection of clue cells on microscopy?
A patient consults a dermatologist about a skin lesion on her neck. Examination reveals a 1-cm diameter, red, scaly plaque with a rough texture and irregular margins. Biopsy demonstrates epidermal cells with large, pleomorphic, hyperchromatic nuclei. What is the most likely diagnosis?
A woman with postmenopausal bleeding has thickened endometrium. Which approach is most suitable for evaluating malignancy risk?
Identify the pathological condition shown in the image:
All of the following are tests done for Turner mosaic screening except?
A 22-year-old woman presents for STI screening. She reports multiple sexual partners and inconsistent condom use. What screening tests would be most appropriate?
The following set of instruments are used for which procedure?
A cervical Pap smear report stating that "koilocytic atypia is present" indicates the presence of:
Which of the following statements is correct regarding the use of histopathological examination techniques for mass screening of endometrial cancer?
Gynecologic Cytology Indian Medical PG Practice Questions and MCQs
Question 1: Which one of the following is NOT a characteristic feature of bacterial vaginosis?
- A. Vaginal pH >4.5
- B. Fishy odour
- C. Presence of clue cells
- D. Thick white discharge (Correct Answer)
Explanation: ***Thick white discharge*** - Bacterial vaginosis is characterized by a **thin, grayish-white, homogeneous discharge**, not a thick white one. - A thick, white, "cottage cheese-like" discharge is more typical of **vulvovaginal candidiasis (yeast infection)**. *Presence of clue cells* - **Clue cells** are epithelial cells covered with bacteria, which are a hallmark microscopic finding in bacterial vaginosis. - Their presence is a key diagnostic criterion (Amsel criteria) for the condition. *Vaginal pH >4.5* - Bacterial vaginosis is associated with an **elevated vaginal pH, typically greater than 4.5**, due to the shift in vaginal flora. - This alkaline pH is a critical diagnostic indicator. *Fishy odour* - A **distinctive fishy odor**, particularly after intercourse or douching, is a classic symptom of bacterial vaginosis. - This odor is due to the production of **volatile amines** by anaerobic bacteria.
Question 2: Which of the following conditions is associated with the detection of clue cells on microscopy?
- A. Bacterial vaginosis (Correct Answer)
- B. Trichomoniasis
- C. Chlamydial infection
- D. Candidal vulvovaginitis
Explanation: ***Bacterial vaginosis*** - **Clue cells** are the hallmark microscopic finding in **bacterial vaginosis**, characterized by vaginal epithelial cells covered in bacteria with obscured borders. - This condition results from an imbalance in vaginal flora, specifically an overgrowth of anaerobic bacteria. *Trichomoniasis* - This sexually transmitted infection is caused by the parasite *Trichomonas vaginalis*, which can be seen as motile organisms on wet mount microscopy. - **Clue cells** are not a feature of trichomoniasis; instead, **flagellated trichomonads** are observed. *Chlamydial infection* - *Chlamydia trachomatis* is an intracellular bacterium that infects cervical cells, leading to cervicitis or urethritis. - Diagnosis typically involves **nucleic acid amplification tests (NAATs)**; clue cells are not associated with this infection. *Candidal vulvovaginitis* - This condition, commonly known as a yeast infection, is caused by *Candida* species. - Microscopic examination reveals **hyphae and budding yeast forms**, not clue cells.
Question 3: A patient consults a dermatologist about a skin lesion on her neck. Examination reveals a 1-cm diameter, red, scaly plaque with a rough texture and irregular margins. Biopsy demonstrates epidermal cells with large, pleomorphic, hyperchromatic nuclei. What is the most likely diagnosis?
- A. Dermal nevus
- B. Actinic keratosis (Correct Answer)
- C. Junctional nevus
- D. Compound nevus
Explanation: ***Actinic keratosis*** - This diagnosis aligns with the description of a **red, scaly plaque** with a **rough texture** and **irregular margins**, which are classic clinical features of actinic keratosis. - The biopsy findings of epidermal and dermal cells with **large, pleomorphic, hyperchromatic nuclei** are consistent with **atypical keratinocytes**, a hallmark of actinic keratosis, indicating **premalignant change**. *Dermal nevus* - A dermal nevus is a **benign melanocytic lesion** that typically presents as a smooth, flesh-colored to light brown papule or nodule, not a scaly or rough plaque. - Histologically, it would show nests of nevus cells primarily in the **dermis** without the significant cellular atypia described. *Junctional nevus* - A junctional nevus is a **benign melanocytic lesion** characterized by nests of nevus cells located at the **dermoepidermal junction**. - Clinically, it appears as a flat or slightly raised, well-demarcated macule or papule, usually uniform in color, lacking the scaly, rough, and irregular features of the presented lesion. *Compound nevus* - A compound nevus is a **benign melanocytic lesion** with nevus cell nests present at both the **dermoepidermal junction** and within the dermis. - It typically presents as a raised, pigmented papule or nodule with a smooth or slightly warty surface, not a scaly plaque with irregular margins.
Question 4: A woman with postmenopausal bleeding has thickened endometrium. Which approach is most suitable for evaluating malignancy risk?
- A. Endometrial biopsy (Correct Answer)
- B. Transvaginal ultrasound
- C. Pap smear
- D. Hysteroscopy
Explanation: ***Endometrial biopsy*** - An **endometrial biopsy** directly obtains tissue samples from the endometrial lining, allowing for histological examination to definitively diagnose or rule out **endometrial hyperplasia** or **carcinoma**. - This is the **most suitable first-line approach** when postmenopausal bleeding is coupled with a thickened endometrium, as it directly assesses for **malignancy at a cellular level**. - It is **cost-effective, minimally invasive, and can be performed in an office setting** without anesthesia. *Transvaginal ultrasound* - While a **transvaginal ultrasound** can measure endometrial thickness and identify structural abnormalities, it cannot definitively differentiate between benign and malignant changes. - It serves as an initial screening tool but requires further investigation like a **biopsy** for definitive diagnosis in cases of thickened endometrium and postmenopausal bleeding. - An endometrial thickness >4-5 mm in postmenopausal women warrants tissue diagnosis. *Pap smear* - A **Pap smear** (Papanicolaou test) is used to screen for **cervical cancer** by collecting cells from the cervix. - It is not effective for detecting **endometrial pathologies** or cancer of the uterine lining. *Hysteroscopy* - **Hysteroscopy** allows for direct visualization of the uterine cavity and directed biopsies under direct vision, which is highly accurate for identifying focal lesions such as polyps or fibroids. - While it provides excellent diagnostic accuracy, it is **more invasive, expensive, and typically requires anesthesia**. - For initial evaluation of postmenopausal bleeding with diffuse endometrial thickening, **endometrial biopsy is preferred** as the first-line approach due to its accessibility, lower cost, and adequate sensitivity (>90% for detecting endometrial cancer).
Question 5: Identify the pathological condition shown in the image:
- A. Intramural fibroid
- B. Adenomyoma (Correct Answer)
- C. Endometriosis
- D. Myomatous polyp
Explanation: ***Adenomyoma*** - The image distinctly shows **endometrial glands and stroma** embedded within the **myometrium** (smooth muscle layer of the uterus), which is the hallmark of adenomyoma [1]. - This condition is essentially a localized form of **adenomyosis**, presenting as a mass [1]. *Intramural fibroid* - An intramural fibroid (leiomyoma) is a **benign tumor of smooth muscle cells**, typically showing a proliferation of uniform spindle cells with characteristic swirling patterns [2]. - It would lack the presence of **endometrial glands and stroma** within the lesion [2]. *Endometriosis* - Endometriosis involves the presence of **endometrial tissue outside the uterus**, such as on the ovaries, peritoneum, or bowel. - While it involves similar tissue, its location is **extrauterine**, whereas the image depicts a lesion within the uterine wall. *Myomatous polyp* - A myomatous polyp (or submucosal fibroid) is a **fibroid that protrudes into the uterine cavity**, often covered by endometrial tissue [2]. - The image does not show a polypoid growth extending into the cavity but rather glandular tissue directly within the muscle wall. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Female Genital Tract Disease, pp. 475-476. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Female Genital Tract, pp. 1024-1025.
Question 6: All of the following are tests done for Turner mosaic screening except?
- A. Karyotype
- B. FISH
- C. Serum FSH (Correct Answer)
- D. Buccal smear
Explanation: ***Serum FSH*** - **Serum Follicle-Stimulating Hormone (FSH)** levels are used to assess ovarian function and can be elevated in conditions like Turner syndrome due to **gonadal dysgenesis**, but it is a **functional test**, not a screening tool for mosaicism. - While elevated FSH is a clinical feature of Turner syndrome, it does not directly screen for the chromosomal mosaicism itself. *Karyotype* - **Karyotyping** is the **gold standard** for diagnosing Turner syndrome and its mosaics by visualizing the entire set of chromosomes [1]. - It can identify various forms of mosaicism involving the X chromosome, where some cells have 45,XO and others have 46,XX or other variations [1]. *FISH* - **Fluorescence in situ hybridization (FISH)** is a molecular cytogenetic technique used to detect specific chromosomal abnormalities, including those associated with Turner mosaicism. - It uses DNA probes that bind to specific regions of the X chromosome, allowing for the rapid detection of **aneuploidy** or deletions that might indicate mosaicism [2]. *Buccal smear* - A **buccal smear**, historically used for **Barr body** analysis, can provide an initial screening for X chromosome abnormalities. - The presence of Barr bodies (inactive X chromosomes) can help differentiate between 45,XO (no Barr body) and mosaic variants like 45,XO/46,XX (variable number of Barr bodies). **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. (Basic Pathology) introduces the student to key general principles of pathology, both as a medical science and as a clinical activity with a vital role in patient care. Part 2 (Disease Mechanisms) provides fundamental knowledge about the cellular and molecular processes involved in diseases, providing the rationale for their treatment. Part 3 (Systematic Pathology) deals in detail with specific diseases, with emphasis on the clinically important aspects., pp. 54-55. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Genetic Disorders, pp. 186-187.
Question 7: A 22-year-old woman presents for STI screening. She reports multiple sexual partners and inconsistent condom use. What screening tests would be most appropriate?
- A. HPV DNA testing only
- B. Complete blood count and urinalysis
- C. HIV and syphilis testing only
- D. HIV, syphilis, gonorrhea, and chlamydia testing (Correct Answer)
Explanation: ***HIV, syphilis, gonorrhea, and chlamydia testing*** - This comprehensive panel screens for the most common bacterial and viral STIs in sexually active individuals with **multiple partners** and **inconsistent condom use**, as recommended by **NACO and WHO guidelines**. - **Gonorrhea and chlamydia** often present asymptomatically but can lead to serious reproductive health complications including pelvic inflammatory disease (PID) and infertility if untreated. - In high-risk populations, comprehensive screening is essential for early detection and prevention of transmission. *HPV DNA testing only* - **HPV DNA testing** is primarily for cervical cancer screening in women over 30 years or as a co-test with cytology; it doesn't cover other STIs. - While HPV is common, testing for other prevalent STIs like chlamydia, gonorrhea, syphilis, and HIV is crucial given her risk factors. *Complete blood count and urinalysis* - A **complete blood count (CBC)** assesses overall health and detects conditions like anemia or infection but is not a specific STI screening test. - **Urinalysis** checks for urinary tract infections or kidney issues and does not directly screen for STIs. - These are general screening tests and miss the targeted STI screening needed. *HIV and syphilis testing only* - Although **HIV and syphilis testing** are essential components of STI screening, this option misses other common and treatable bacterial STIs like gonorrhea and chlamydia. - Given the patient's risk factors (multiple partners, inconsistent condom use), a more comprehensive screening panel is warranted to prevent long-term reproductive complications.
Question 8: The following set of instruments are used for which procedure?
- A. Biopsy
- B. Dilatation and curettage
- C. Pap smear (Correct Answer)
- D. Hysteroscopy
Explanation: ***Pap smear*** - The image displays a complete set of instruments used for a **Pap smear**, including **glass slides** for sample collection, a **cervical brush**, a **spatula** (cytobrush and Ayre spatula), and a **speculum** to visualize the cervix. - These tools are specifically designed for collecting cervical cells to screen for **cervical cancer** and **precancerous changes**. *Biopsy* - A biopsy typically involves specialized instruments like **punch biopsy tools**, **forceps**, or needles to extract tissue samples, which are not depicted here. - While glass slides might be used for processing biopsy samples, the primary collection tools are absent. *Dilatation and curettage* - This procedure requires instruments such as **dilators** to open the cervix and **curetters** to scrape the uterine lining, which are not shown in the image. - The instruments shown are for surface cell collection, not for uterine cavity procedures. *Hysteroscopy* - Hysteroscopy uses a **hysteroscope**—a thin, lighted tube with a camera—to visualize the inside of the uterus. - The instruments in the image are for external examination and cervical cell collection, not for direct visualization of the uterine cavity.
Question 9: A cervical Pap smear report stating that "koilocytic atypia is present" indicates the presence of:
- A. Cytologic changes caused by herpes simplex virus (HSV)
- B. Cytologic changes caused by human papillomavirus (HPV) (Correct Answer)
- C. High-grade cervical intraepithelial neoplasia (CIN)
- D. Cytologic changes caused by chlamydial infection
Explanation: ***Cytologic changes caused by human papillomavirus (HPV)*** - **Koilocytic atypia** is a characteristic cytopathic effect seen in cervical epithelial cells infected with **human papillomavirus (HPV)** [2]. - Koilocytes are squamous epithelial cells with **perinuclear halos** and nuclear changes such as enlargement, hyperchromasia, and irregular contours [2]. *High-grade cervical intraepithelial neoplasia (CIN)* - While HPV infection can lead to high-grade CIN, **koilocytic atypia** itself is typically associated with **low-grade squamous intraepithelial lesion (LSIL)**, which is often a precursor to CIN [1]. - High-grade CIN (CIN 2/3) involves more severe architectural disorganization and loss of cell maturation not solely defined by koilocytic atypia. *Cytologic changes caused by herpes simplex virus (HSV)* - HSV infection in a Pap smear would show characteristic changes like **multinucleated giant cells**, **nuclear molding**, and **intranuclear inclusions**, not koilocytic atypia [3]. - These findings are distinct from the perinuclear halo and nuclear irregularities seen in HPV infection. *Cytologic changes caused by chlamydial infection* - Chlamydial infections are bacterial and primarily cause signs of **inflammation**, such as an increased number of neutrophils and plasma cells, and reactive changes in epithelial cells. - **Chlamydia** does not induce koilocytic changes; these are specific to viral infections, particularly HPV. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Female Genital Tract, pp. 1006-1008. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Female Genital Tract Disease, pp. 466-467. [3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Infectious Diseases, pp. 365-366.
Question 10: Which of the following statements is correct regarding the use of histopathological examination techniques for mass screening of endometrial cancer?
- A. Fine Needle Aspiration Cytology (FNAC) is recommended for routine endometrial cancer screening
- B. Histopathological examination techniques are not applicable for mass screening of endometrial cancer (Correct Answer)
- C. Exfoliative cytology is suitable for mass screening of endometrial cancer
- D. Brush cytology is the preferred method for mass screening of endometrial cancer
Explanation: ***Exfoliative cytology.*** - This technique is effective for **mass screening**, allowing for the collection of cells shed from the **surface of the uterine cervix** for examination [1]. - It has a critical role in detecting **cervical cancer** and precancerous changes efficiently [1]. *Brush cytology* - Primarily used for **direct sampling** of lesions, not specifically designed for mass screening. - More invasive and typically not suited for obtaining samples for histopathological examination in comparison to exfoliative techniques. *Not applicable* - This response does not provide a relevant diagnostic technique for uterine cancer screening. - It does not acknowledge the need for cytological evaluation in potential cases of uterine cancer. *FNAC* - Fine Needle Aspiration Cytology (FNAC) is generally used for **solid masses** rather than for screening purposes. - It is not the preferred method for early detection in the cervix, which requires exfoliative cytology [1]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Female Genital Tract, pp. 1010-1011.
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