Reproductive Pathology Practice Questions

Q: Gleason's scoring is performed for which of the following malignancies?

Prostate cancer. **Explanation:** **Gleason’s scoring** is the gold standard grading system used to determine the prognosis of **Prostate Adenocarcinoma** [1]. Unlike many other grading systems that rely on cellular atypia, the Gleason system is based solely on the **architectural patterns** of the tumor glands under low-power magnification. 1. **Why Option A is Correct:** The Gleason score is calculated by identifying the most common (primary) and second most common (secondary) architectural patterns, each graded from 1 to 5 [1]. The sum (e.g., 3+4=7) provides the score. In modern practice, the **ISUP Grade Groups (1–5)** are used to further categorize these scores for clinical decision-making. 2. **Why Other Options are Incorrect:** * **Lung Cancer:** Graded based on histological type (Small cell vs. Non-small cell) and differentiation (Well, moderately, or poorly differentiated). * **Bladder Cancer:** Primarily graded using the **WHO/ISUP classification**, which categorizes tumors into Low-grade or High-grade papillary urothelial carcinomas. * **Hodgkin’s Lymphoma:** This is **staged** (Ann Arbor Staging) rather than graded, as the prognosis depends on the anatomical extent of the disease rather than the degree of cellular differentiation. **High-Yield Clinical Pearls for NEET-PG:** * **Gleason Grade 1:** Small, uniform glands (closest to normal). * **Gleason Grade 5:** No gland formation; solid sheets, cords, or single cells (most aggressive). * **Prostate Specific Antigen (PSA):** Used for screening and monitoring, but Gleason score is the best predictor of prognosis following radical prostatectomy [1]. * **Site:** Most prostate cancers arise in the **Peripheral Zone** [1]. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lower Urinary Tract and Male Genital System, pp. 989-994.

Q: Which ovarian tumor is typically bilateral?

Dysgerminoma. **Explanation:** **Dysgerminoma** is the most common malignant germ cell tumor (GCT) of the ovary. Its defining clinical characteristic among germ cell tumors is its tendency for **bilaterality**, occurring in approximately **10–15%** of cases. In contrast, almost all other malignant germ cell tumors are almost always unilateral. Dysgerminomas are radiosensitive, chemo-sensitive, and often associated with gonadal dysgenesis (e.g., Swyer syndrome). **Analysis of Incorrect Options:** * **Endodermal Sinus Tumor (Yolk Sac Tumor):** This is the second most common malignant GCT. It is highly aggressive, rapidly growing, and virtually always **unilateral**. It is characterized by elevated **AFP** levels and Schiller-Duval bodies on histology. * **Immature Teratoma:** These tumors contain tissues from all three germ layers (predominantly neuroepithelium). They are almost always **unilateral**, though the contralateral ovary may occasionally harbor a *benign* cystic teratoma. * **Embryonal Cell Carcinoma:** A rare, highly malignant GCT that produces both AFP and hCG. It typically presents as a large **unilateral** mass. **NEET-PG High-Yield Pearls:** * **Most common malignant GCT:** Dysgerminoma. * **Tumor Markers:** Dysgerminoma is associated with elevated **LDH** and occasionally hCG. * **Microscopy:** Look for "large cells with clear cytoplasm and central nuclei (fried-egg appearance) separated by fibrous septa infiltrated with lymphocytes." * **Rule of Thumb:** If a malignant germ cell tumor is bilateral, the answer is almost always Dysgerminoma. If an epithelial tumor is bilateral, consider Serous Cystadenocarcinoma or Krukenberg tumor.

Q: Oestrogen causes proliferation of which cells in the vaginal epithelium?

Superficial cells. The vaginal epithelium is a non-keratinized stratified squamous epithelium that undergoes cyclic changes under the influence of ovarian hormones. **Explanation of the Correct Answer:** **Estrogen** is the primary hormone responsible for the **maturation and proliferation** of the vaginal squamous epithelium. It stimulates the maturation of cells from the basal layer up to the **superficial layer**. Therefore, a high estrogenic state (like the ovulatory phase) is characterized by a predominance of **superficial cells** (large, flat cells with pyknotic nuclei). These cells are rich in glycogen, which is fermented by Doderlein’s bacilli to maintain an acidic vaginal pH. **Analysis of Incorrect Options:** * **Intermediate cells:** These cells predominate under the influence of **Progesterone**. In the luteal phase of the menstrual cycle or during pregnancy, the maturation process stops at the intermediate level. * **Basal/Parabasal cells:** These are the least mature cells. They predominate in **low-estrogen states**, such as prepuberty or menopause (atrophic vaginitis). * **Both superficial and intermediate cells:** While estrogen promotes the transition through all layers, its specific "end-point" effect and the hallmark of high estrogenic activity is the presence of superficial cells. **High-Yield Clinical Pearls for NEET-PG:** * **Maturation Index (MI):** Reported as a ratio of (Parabasal : Intermediate : Superficial cells). * **Shift to the Right:** High Estrogen (e.g., 0:40:60) → Predominance of Superficial cells. * **Shift to the Mid:** High Progesterone (e.g., 0:90:10) → Predominance of Intermediate cells. * **Shift to the Left:** Low Estrogen (e.g., 80:20:0) → Predominance of Parabasal cells (Atrophy). * **Fern Test:** Estrogen causes "ferning" of cervical mucus; Progesterone inhibits it.

Q: What is the interpretation of the given cervix biopsy of a 50-year-old lady?

Carcinoma in situ. ***Carcinoma in situ*** - Shows **full-thickness dysplasia** (CIN 3) with complete loss of cellular maturation from basal to surface epithelium, maintaining an **intact basement membrane**. - Characterized by **hyperchromatic nuclei**, increased **nuclear-to-cytoplasmic ratio**, and numerous **mitotic figures** throughout all epithelial layers. *CMV infection* - Would show characteristic **owl's eye inclusions** (large eosinophilic intranuclear inclusions with clear halos) in infected cells. - Associated with **inflammatory infiltrate** and **cytomegaly**, not the organized dysplastic changes seen in CIN 3. *Cervical carcinoma* - Would demonstrate **invasion through the basement membrane** into underlying stroma, which is not present in carcinoma in situ. - Shows **stromal desmoplastic reaction** and **inflammatory response** around invasive tumor nests. *HPV induced koilocytosis* - Characterized by **koilocytes** - cells with enlarged nuclei surrounded by **perinuclear halos** and **wrinkled nuclear membranes**. - Represents **low-grade dysplasia** (CIN 1) with preserved epithelial maturation, unlike the full-thickness involvement in CIN 3.

Question 1

A 2-year-old boy presents with a palpable mass on his right testicle. After orchiectomy, microscopic examination of the specimen reveals neoplastic cells forming glomeruloid Schiller-Duval bodies. Which serum marker is most useful for monitoring tumor recurrence in this patient?

Accepted Answer

a-Fetoprotein

Answer

CA-125

Answer

Carcinoembryonic antigen

Answer

Estrogen

Question 2

Condyloma acuminata is reported on Pap smear as:

Accepted Answer

LSIL

Answer

Inflammatory condition

Answer

Carcinoma

Answer

Carcinoma in situ

Question 3

A 50-year-old female presented with a lump in the right breast and was diagnosed with Luminal A carcinoma. Which of the following statements about this cancer is FALSE?

Accepted Answer

Estrogen receptor/Progesterone receptor negative

Answer

Most common subtype

Answer

Best prognosis

Answer

Poor response to paclitaxel

Question 4

Gleason's scoring is performed for which of the following malignancies?

Accepted Answer

Prostate cancer

Answer

Lung cancer

Answer

Bladder cancer

Answer

Hodgkin's lymphoma

Question 5

Which ovarian tumor is typically bilateral?

Accepted Answer

Dysgerminoma

Answer

Endodermal sinus tumor

Answer

Immature teratoma

Answer

Embryonal cell carcinoma

Question 6

What is the most important prognostic factor for breast carcinoma?

Accepted Answer

Lymph node involvement

Answer

Age of the patient

Answer

Genetic factors

Answer

Family history

Question 7

Oestrogen causes proliferation of which cells in the vaginal epithelium?

Accepted Answer

Superficial cells

Answer

Intermediate cells

Answer

Basal cells

Answer

Both superficial and intermediate cells

Question 8

Which of the following is NOT true about spermatocytic seminoma?

Accepted Answer

It is characterized by three distinct cell types.

Answer

It is typically seen in individuals around 65 years of age.

Answer

It behaves as a slow-growing tumor.

Answer

It is clinically and histologically unrelated to classical seminoma.

Question 9

What is the interpretation of the given cervix biopsy of a 50-year-old lady?

Accepted Answer

Carcinoma in situ

Answer

CMV infection

Answer

Cervical carcinoma

Answer

HPV induced koilocytosis

Question 10

Which testicular tumor is associated with high HCG levels?

Accepted Answer

Choriocarcinoma

Answer

Seminoma

Answer

Endodermal sinus tumor

Answer

All of the above

Reproductive Pathology — MCQs

Reproductive Pathology — MCQs

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