Reproductive Pathology Practice Questions

Q: A young male with a testicular mass is found to have elevated beta-hCG levels. What is the most likely diagnosis?

Embryonal Carcinoma. ***Choriocarcinoma*** - Characterized by **elevated beta-hCG levels**, this indicates **germ cell tumors**, commonly associated with choriocarcinoma. - It often presents with a **testicular mass** and can metastasize to lungs and other organs. *Seminoma* - Typically presents with a **testicular mass** but usually has **normal beta-hCG levels** unless mixed with other germ cell tumors. - Most common germ cell tumor, but generally does not elevate **beta-hCG** significantly. *Embryonal Carcinoma* - Can produce beta-hCG but is usually seen in **mixed germ cell tumors** rather than isolated choriocarcinoma. - Typically presents with a **varied mass**, often painful, and may show **elevated AFP** levels if it's a mixed type. *Teratoma* - Often presents as a **benign mass** with **no elevation of beta-hCG**; typically does not produce hormones. - While teratomas can have malignant potential, they usually do not result in significant **beta-hCG elevation**.

Q: A 23-year-old male presents with a testicular mass. A biopsy shows a mixture of syncytiotrophoblasts and cytotrophoblasts. Which tumor marker is likely to be elevated?

Beta-human chorionic gonadotropin. ***Beta-human chorionic gonadotropin*** - In cases of germ cell tumors like **seminomas**, which exhibit **large clear cells**, beta-hCG is often elevated [1]. - This marker is particularly associated with **testicular tumors**, including those with clear cell morphology [1,2]. *Prostate-specific antigen* - Typically elevated in **prostate cancer** and benign prostatic conditions, not applicable to testicular tumors. - Lacks correlation with the clinical presentation of a testicular mass in a young male. *Alpha-fetoprotein* - Generally associated with **hepatocellular carcinoma** and some germ cell tumors such as **yolk sac tumors**, but not in most seminomas. - In this scenario, the presence of clear cells makes beta-hCG a more likely marker. *Carcinoembryonic antigen* - Primarily used as a tumor marker for **colorectal cancer**, not typically elevated in testicular tumors. - Its relevance is limited, particularly in cases involving testicular masses with clear cells. **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. 980-982. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Diseases Of The Urinary And Male Genital Tracts, pp. 512-513.

Q: A 40-year-old man presents with a palpable breast mass. What is the most common type of breast cancer in men?

Invasive ductal carcinoma. ***Invasive ductal carcinoma*** - This is the **most common type of breast cancer** in men, accounting for the vast majority of male breast cancers. - It arises from the **lining of the milk ducts** and is characterized by its ability to invade surrounding breast tissue. *Intraductal papilloma* - While it can occur in men, it is a **benign (non-cancerous) tumor** of the milk ducts. - It usually presents with **nipple discharge**, which is often bloody, rather than a palpable mass as the primary concern. *Lobular carcinoma* - This type of breast cancer originates in the **milk-producing lobules of the breast**. - **Lobules are typically undeveloped in men**, making lobular carcinoma an extremely rare diagnosis in males. *Fibroadenoma* - Fibroadenomas are **benign tumors** composed of both glandular and stromal tissue. - They are very common in women, especially younger women, but are **exceptionally rare in men** due to the undeveloped nature of male breast glandular tissue.

Q: A 58-year-old woman has heavy uterine bleeding. Her biopsy shows irregular glands lined by pseudostratified columnar epithelium invading the myometrium. Which condition is consistent with this presentation?

Endometrial carcinoma. ***Endometrial carcinoma*** - The presence of **irregular glands lined by pseudostratified columnar epithelium** invading the myometrium is a hallmark of **endometrial adenocarcinoma**, the most common type of endometrial cancer. - **Heavy uterine bleeding** in a 58-year-old woman (postmenopausal or perimenopausal) is a classic symptom requiring immediate investigation for malignancy. *Endometrial hyperplasia* - While endometrial hyperplasia involves proliferation of endometrial glands, it typically presents as **glandular crowding** without stromal invasion or highly atypical features like pseudostratified columnar epithelium invading the myometrium. - Although it is a precursor lesion, the described uterine invasion points to a more advanced malignant process. *Adenomyosis* - This condition involves the presence of **benign endometrial glands and stroma** within the myometrium, not irregular, pseudostratified, or invasive malignant glands. - It often causes **dysmenorrhea** and **menorrhagia**, but the biopsy findings rule out adenomyosis as the primary diagnosis. *Endometriosis* - Endometriosis is characterized by **ectopic endometrial tissue** outside the uterus, most commonly on the ovaries and peritoneal surfaces. - It does not involve the invasion of the myometrium by irregular, pseudostratified epithelium from the uterine lining itself.

Q: A 30-year-old woman presents with a painless breast mass. A biopsy reveals tumor cells infiltrating the stroma in a single-file pattern. What is the most likely diagnosis?

Invasive lobular carcinoma. ***Invasive lobular carcinoma*** - Invasive lobular carcinoma is characterized by **ductal cells infiltrating the stroma in a single-file pattern** [1], which aligns with the biopsy findings. - This type of carcinoma often presents as a **painless breast mass** and may be bilateral; it has distinct growth patterns compared to ductal carcinomas [1]. *Fibroadenoma* - Fibroadenomas typically present as **well-circumscribed, painless masses** that are mobile, not infiltrative. - They do not show the **single-file pattern** of infiltration but rather a more solid or encapsulated growth on histology. *Ductal carcinoma in situ* - Ductal carcinoma in situ (DCIS) is restricted to the ducts and would not demonstrate the **invasive pattern** seen in the biopsy. - It often presents with calcifications on imaging rather than a palpable mass, and is not infiltrating the stroma. *Invasive ductal carcinoma* - Invasive ductal carcinoma usually presents with **irregular masses** and may have varied cellular morphology, but does not specifically infiltrate in the **single-file pattern** characteristic of lobular carcinoma [1]. - The presence of a **painless mass with specific infiltration patterns** suggests a different diagnosis than the typical presentation of invasive ductal carcinoma. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 454-455.

Q: A 34-year-old woman presents with a palpable breast lump. Core needle biopsy is performed. Which of the following findings in the biopsy is most concerning regarding malignant potential?

Atypical hyperplasia. ***Atypical hyperplasia*** - **Atypical hyperplasia** signifies abnormal cellular proliferation with some, but not all, features of carcinoma in situ, representing a **premalignant lesion** with a significantly increased risk of developing invasive breast cancer [1]. [2] - While not cancer itself, it is a **marker of increased risk** in both breasts and warrants close surveillance and often prophylactic measures. *Fibroadenoma* - **Fibroadenomas** are common **benign breast tumors** composed of both glandular and stromal tissue, typically presenting as mobile, rubbery masses [4]. - They do not inherently increase the risk of breast cancer unless associated with **complex features** or atypical hyperplasia within the fibroadenoma [4]. *Ductal hyperplasia* - **Ductal hyperplasia** (or usual ductal hyperplasia) is a benign condition characterized by an increase in the number of epithelial cells lining the breast ducts [3]. - It confers only a **mildly increased risk** of subsequent breast cancer, which is significantly lower than that associated with atypical hyperplasia [2]. *Fat necrosis* - **Fat necrosis** occurs when breast fat cells are damaged, often due to trauma, surgery, or radiation, leading to inflammation and scar tissue formation. - It is a **benign condition** and does not increase the risk of breast cancer. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Breast, pp. 1054-1056. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Breast, p. 1052. [3] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 446-447. [4] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 448-449.

Q: A 40-year-old man presents with a painless testicular mass. Laboratory results show high AFP and high hCG levels. Biopsy reveals sheets of large anaplastic cells with abundant cytoplasm. What is the likely diagnosis?

Embryonal carcinoma. ***Embryonal carcinoma*** - This tumor is characterized histologically by **sheets of large anaplastic cells with abundant cytoplasm**, often showing glandular or papillary differentiation, and is associated with elevated **AFP** and **hCG** levels [1]. - Embryonal carcinoma is a highly malignant germ cell tumor that commonly presents as a **painless testicular mass** and can produce both AFP and hCG [1]. *Seminoma* - While seminomas also present as painless testicular masses, they are typically associated with normal **AFP** levels and may have mildly elevated **hCG** in about 15% of cases [1]. - Histologically, seminomas are characterized by large clear cells with a central nucleus, often with fibrous septa and lymphocytic infiltration, which differs from the description provided [1]. *Choriocarcinoma* - This highly aggressive tumor is defined by significantly elevated **hCG** levels due to the presence of syncytiotrophoblastic cells, but it typically has normal or only slightly elevated **AFP** (unless mixed with other germ cell elements) [2]. - Choriocarcinoma histology includes a biphasic pattern of cytotrophoblasts and syncytiotrophoblasts, which does not match the description of "sheets of large anaplastic cells" [2]. *Yolk sac tumor* - Yolk sac tumors are characterized by consistently very high levels of **AFP**, but usually normal **hCG** levels. - Histologically, they feature **Schiller-Duval bodies** (glomeruloid structures), reticular patterns, and endodermal sinus structures, which are not described in the biopsy findings. **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. 979-980. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Lower Urinary Tract and Male Genital System, p. 982.

Q: 30 year old woman with complaint of dysmenorrhoea, dyspareunia with chronic pelvic pain undergoes hysterectomy. From the cut section of hysterectomy specimen below identify the condition.

Adenomyosis. ***Adenomyosis*** - The image shows a **thickened uterine wall** with poorly demarcated, **cystic or hemorrhagic areas** within the myometrium, which are characteristic macroscopic findings of adenomyosis. - The clinical symptoms of **dysmenorrhea, dyspareunia, and chronic pelvic pain** are classic presentations for adenomyosis, caused by the presence of endometrial glands and stroma within the myometrium. - The **globular uterine enlargement** with diffuse involvement distinguishes this from discrete lesions. *Fibroids (Leiomyoma)* - Fibroids are **well-circumscribed, discrete, rubbery masses** within the myometrium, often bulging from the surface or cut section with a characteristic **whorled appearance**. - While fibroids can cause menorrhagia and bulk symptoms, the diffuse thickening and **ill-defined hemorrhagic foci** in the image are inconsistent with the **sharply defined borders** of leiomyomas. *Endometrial hyperplasia* - Endometrial hyperplasia involves **thickening of the endometrial lining** due to excess estrogen stimulation, typically presenting with abnormal uterine bleeding. - This condition affects the **endometrium (lining) rather than the myometrium (muscle wall)**, and would not show the deep myometrial involvement with cystic spaces seen in the image. - The clinical picture of dysmenorrhea and dyspareunia is more consistent with adenomyosis than hyperplasia. *Endometriosis* - Endometriosis involves the presence of **endometrial tissue outside the uterus**, such as on the ovaries, peritoneum, or pelvic organs. - While it shares similar symptoms like dysmenorrhea and dyspareunia, endometriosis is a **separate condition from adenomyosis** (which is endometrial tissue within the uterine wall). - The image shows the **uterine cut section with myometrial involvement**, not external implants characteristic of endometriosis.

Q: Which karyotype is most commonly associated with true hermaphroditism?

46,XX. ***46,XX*** - While other karyotypes can be seen, **46,XX** is the most frequent chromosomal constitution in individuals with true hermaphroditism (ovotesticular DSD), where both ovarian and testicular tissue are present. - This karyotype suggests a genetic female who has developed testicular tissue due to a translocated **SRY gene** onto an X chromosome or an autosomal chromosome, or other genetic aberrations. *45,X0* - This karyotype is associated with **Turner syndrome**, characterized by primary amenorrhea, short stature, and other developmental abnormalities, without the presence of both ovarian and testicular tissue [1]. - Individuals with Turner syndrome are typically phenotypic females with streak gonads, not true hermaphrodites [1]. *47,XY+9* - This karyotype indicates an extra copy of chromosome 9 (trisomy 9) in an individual, which is extremely rare and typically lethal or associated with severe developmental abnormalities and mosaic patterns. - Trisomy 9 is not associated with true hermaphroditism but rather causes multiple congenital anomalies including craniofacial defects, cardiac malformations, and developmental delays. *47,XXY* - This karyotype is characteristic of **Klinefelter syndrome**, where individuals are phenotypic males with impaired testicular function, infertility, and often gynecomastia. - They possess male gonads (testes) but do not typically have ovarian tissue, thus ruling out true hermaphroditism. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Genetic Disorders, pp. 175-177.

Q: Identify the condition represented in the image of a testicular tumor.

Seminoma. ***Seminoma*** - Seminoma is a type of **germ cell tumor** that typically presents with a **painless testicular mass**, making it one of the common types of testicular cancer [1]. - This condition is characterized by the presence of **large, uniform cells** and is highly sensitive to **radiation therapy**, which aids in management [1]. *Non-seminoma* - Non-seminomas encompass a group of tumors including **embryonal carcinoma**, **choriocarcinoma**, and **yolk sac tumor**, which often present with more variable histological features [1]. - Generally considered more aggressive than seminomas, they may yield **higher levels of tumor markers** such as **AFP** or **hCG** [1]. *Teratoma* - Teratomas typically contain **multiple germ layers (ectoderm, mesoderm, and endoderm)**, often presenting with more complex histopathology compared to seminomas [1]. - They can occur in both children and adults, but in adults, they are often a component of a **non-seminomatous germ cell tumor** instead of a pure form [1,2]. *Germ cell differentiate tumor* - This term broadly refers to any tumor originating from **germ cells**, including both seminomas and non-seminomas, lacking specificity [1]. - It does not reflect the defined characteristics of seminoma and can encompass a range of histological types with diverse behaviors [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. 979-982. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Diseases Of The Urinary And Male Genital Tracts, pp. 512-513.

Question 1

A young male with a testicular mass is found to have elevated beta-hCG levels. What is the most likely diagnosis?

Accepted Answer

Embryonal Carcinoma

Answer

Choriocarcinoma

Answer

Seminoma

Answer

Teratoma

Question 2

A 23-year-old male presents with a testicular mass. A biopsy shows a mixture of syncytiotrophoblasts and cytotrophoblasts. Which tumor marker is likely to be elevated?

Accepted Answer

Beta-human chorionic gonadotropin

Answer

Alpha-fetoprotein

Answer

Carcinoembryonic antigen

Answer

Prostate-specific antigen

Question 3

A 40-year-old man presents with a palpable breast mass. What is the most common type of breast cancer in men?

Accepted Answer

Invasive ductal carcinoma

Answer

Intraductal papilloma

Answer

Lobular carcinoma

Answer

Fibroadenoma

Question 4

A 58-year-old woman has heavy uterine bleeding. Her biopsy shows irregular glands lined by pseudostratified columnar epithelium invading the myometrium. Which condition is consistent with this presentation?

Accepted Answer

Endometrial carcinoma

Answer

Endometrial hyperplasia

Answer

Adenomyosis

Answer

Endometriosis

Question 5

A 30-year-old woman presents with a painless breast mass. A biopsy reveals tumor cells infiltrating the stroma in a single-file pattern. What is the most likely diagnosis?

Accepted Answer

Invasive lobular carcinoma

Answer

Invasive ductal carcinoma

Answer

Ductal carcinoma in situ

Answer

Fibroadenoma

Question 6

A 34-year-old woman presents with a palpable breast lump. Core needle biopsy is performed. Which of the following findings in the biopsy is most concerning regarding malignant potential?

Accepted Answer

Atypical hyperplasia

Answer

Fibroadenoma

Answer

Ductal hyperplasia

Answer

Fat necrosis

Question 7

A 40-year-old man presents with a painless testicular mass. Laboratory results show high AFP and high hCG levels. Biopsy reveals sheets of large anaplastic cells with abundant cytoplasm. What is the likely diagnosis?

Accepted Answer

Embryonal carcinoma

Answer

Choriocarcinoma

Answer

Seminoma

Answer

Yolk sac tumor

Question 8

30 year old woman with complaint of dysmenorrhoea, dyspareunia with chronic pelvic pain undergoes hysterectomy. From the cut section of hysterectomy specimen below identify the condition.

Accepted Answer

Adenomyosis

Answer

Fibroids

Answer

Endometrial hyperplasia

Answer

Endometriosis

Question 9

Which karyotype is most commonly associated with true hermaphroditism?

Accepted Answer

46,XX

Answer

45,X0

Answer

47,XXY

Answer

47,XY+9

Question 10

Identify the condition represented in the image of a testicular tumor.

Accepted Answer

Seminoma

Answer

Non-seminomatous germ cell tumor

Answer

Teratoma (testicular tumor)

Answer

Leydig cell tumor

Reproductive Pathology — MCQs

Reproductive Pathology — MCQs

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