Which of the following are correct regarding pathology of stress urinary incontinence? 1. Hypermobility of urethra 2. Descent of bladder neck and proximal urethra below pelvic diaphragm 3. Lowered urethral pressure 4. Increased detrusor activity
Which of the following conditions of the endometrium is associated with a significantly increased risk of development of cancer?
Among the following causes of genital ulcers, which is MOST likely to show chronic inflammatory changes?
Which of the following HPV types is MOST strongly associated with cervical cancer?
Identify the pathological condition shown in the image:

All of the following are tests done for Turner mosaic screening except?
Most common benign breast tumour:
Germ cell tumour not seen in males:
Chimney Sweeper cancer is the other name for
A 60-year-old woman presents with a 2-week history of uterine bleeding. Gynecologic examination reveals an enlarged uterus. The hysterectomy specimen shows a large polypoid mass involving the endometrium and myometrium. Histologic examination reveals malignant glands and malignant stromal elements, including striated muscle and cartilage. What is the appropriate diagnosis?
Explanation: ***1, 2 and 3*** - **Hypermobility of the urethra**, **descent of the bladder neck and proximal urethra below the pelvic diaphragm**, and **lowered urethral pressure** are all key pathological factors in stress urinary incontinence. - **Statements 1 and 2** represent **urethral hypermobility** (Type 1 and 2 stress incontinence), where anatomical changes lead to inadequate urethral support during increased intra-abdominal pressure. - **Statement 3** represents **intrinsic sphincter deficiency (ISD)** or Type 3 stress incontinence, characterized by lowered urethral closure pressure due to weakness of the urethral sphincter mechanism itself. - Both mechanisms result in **stress urinary incontinence** - involuntary urine loss during activities that increase intra-abdominal pressure (coughing, sneezing, exercise). *1 and 2* - While **hypermobility of the urethra** and **descent of the bladder neck** are correct for stress urinary incontinence, this answer is incomplete as it excludes **lowered urethral pressure** (intrinsic sphincter deficiency), which is also a recognized pathological mechanism of stress incontinence. *2 and 4* - **Increased detrusor activity** is characteristic of **urge incontinence** (overactive bladder), not stress urinary incontinence, where the primary issue is urethral support or sphincter competence. - This option incorrectly includes a feature of urge incontinence rather than stress incontinence. *3 and 4* - **Increased detrusor activity** is related to urge incontinence, where involuntary bladder contractions cause leakage, which is distinct from stress incontinence. - This option is incorrect because it excludes the hypermobility mechanism and includes urge incontinence pathology. *1, 2 and 4* - Although **hypermobility of the urethra** and **descent of the bladder neck** are correct for stress urinary incontinence, **increased detrusor activity** is a characteristic of urge incontinence. [1] - This option inaccurately combines stress and urge incontinence mechanisms. **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. 972-973.
Explanation: ***Complex hyperplasia with atypia*** - This condition carries the highest risk of progression to **endometrial carcinoma**, with approximately a 29% chance of concurrent or subsequent carcinoma [1], [2]. - The presence of **atypia** (abnormal cellular architecture and nuclear features) is the critical factor indicating a high malignant potential [1], [2]. *Complex hyperplasia* - While a form of endometrial hyperplasia, it lacks the **atypical cellular features** that significantly elevate the risk of malignancy [1]. - The risk of progression to endometrial carcinoma is much lower, around 3%, compared to atypical forms [1]. *Simple atypical hyperplasia* - This condition features **atypia** but with a less complex glandular architectural proliferation than complex atypical hyperplasia [2]. - Although it has a lower risk of malignancy than complex atypical hyperplasia (around 8%), it still has a significantly higher risk than non-atypical hyperplasias. *Simple hyperplasia* - This is the **least severe** form of endometrial hyperplasia, characterized by glandular and stromal proliferation without architectural complexity or cellular atypia [1]. - The risk of progression to endometrial carcinoma is very low, approximately 1%, making it far less concerning than atypical forms [1]. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Female Genital Tract Disease, pp. 473-475. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Female Genital Tract, pp. 1016-1018.
Explanation: ***Primary syphilis*** - The primary chancre shows **classic chronic inflammatory infiltrate** with **dense lymphoplasmacytic infiltration** and prominent **plasma cells** [2] - Characterized by **endothelial proliferation** (endarteritis obliterans) and **perivascular chronic inflammation** [2] - This represents the **most characteristic chronic inflammatory pattern** among genital ulcer causes - Spirochetes (*Treponema pallidum*) can be identified with special stains [2] *Granuloma inguinale (Donovanosis)* - Despite its name, does **NOT** show true granulomatous inflammation - Shows **mixed inflammatory infiltrate** with mononuclear cells, plasma cells, and neutrophils - Contains **Donovan bodies** (*Klebsiella granulomatis* within macrophages) - The inflammation is more **subacute/mixed** rather than purely chronic *Genital herpes* - Caused by **herpes simplex virus (HSV)** with **vesicular lesions** that ulcerate [1] - Shows **acute inflammatory response** with lymphocytic infiltrate and viral cytopathic effects - Predominantly **acute inflammation**, not chronic *Chancroid* - Caused by *Haemophilus ducreyi*, producing **painful soft chancres** - Shows **suppurative (acute) inflammation** with extensive **neutrophilic infiltration** and tissue necrosis - Classic **acute inflammatory pattern**, not chronic **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Diseases Of The Urinary And Male Genital Tracts, pp. 503-504. [2] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Infectious Diseases, pp. 386-388.
Explanation: ***HPV 16*** - **HPV 16** is the most prevalent **high-risk HPV type**, accounting for approximately 50-60% of all cervical cancer cases globally. - It's highly effective at integrating its DNA into host cells and producing **oncoproteins E6 and E7**, which promote cell proliferation and inhibit tumor suppressor genes [1]. *HPV 18* - While **HPV 18** is also a **high-risk type** and the second most common cause of cervical cancer (around 10-15%), it is less frequently associated than HPV 16 [1]. - HPV 18 is more commonly linked to **adenocarcinomas** of the cervix, whereas HPV 16 is more often associated with **squamous cell carcinomas**. *HPV 6* - **HPV 6** is considered a **low-risk HPV type**, primarily associated with benign conditions such as **genital warts (condyloma acuminata)** [1]. - It rarely causes cervical cancer and is not considered an oncogenic type. *HPV 11* - Similar to HPV 6, **HPV 11** is also a **low-risk HPV type** and is a common cause of **genital warts**. - It is not associated with an increased risk of cervical cancer. **References:** [1] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. Neoplasia, pp. 334-335.
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.
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.
Explanation: ***Fibroadenoma*** - **Fibroadenomas** are the **most common benign breast tumors**, typically presenting as mobile, firm, and non-tender masses [1]. - They are composed of both **glandular and stromal tissue** and are more prevalent in younger women [1]. *Phyllodes tumour* - **Phyllodes tumors** are much **rarer** than fibroadenomas and can be benign, borderline, or malignant [3]. - They tend to grow **rapidly** and are characterized by a leaf-like stromal pattern [3]. *Fibroadenosis* - **Fibroadenosis** (or fibrocystic changes) refers to a collection of **benign changes** in the breast tissue, including cysts, fibrosis, and epithelial hyperplasia, rather than a single tumor [2]. - It is a common condition causing lumpy and painful breasts, especially before menstruation [4]. *DCIS* - **Ductal Carcinoma In Situ (DCIS)** is a **non-invasive form of breast cancer** where abnormal cells are confined to the milk ducts. - It is not a benign tumor and carries a risk of progression to invasive breast cancer. **References:** [1] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 448-449. [2] Cross SS. Underwood's Pathology: A Clinical Approach. 6th ed. Common Clinical Problems From Liver And Biliary System Disease, pp. 445-446. [3] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Breast, p. 1074. [4] Kumar V, Abbas AK, et al.. Robbins and Cotran Pathologic Basis of Disease. 9th ed. The Breast, p. 1052.
Explanation: ***Correct: Sertoli cell tumour*** - Sertoli cell tumours are **sex cord-stromal tumours**, NOT germ cell tumours - They arise from specialized supporting cells in the testes (Sertoli cells) that normally nurture developing germ cells - These tumours produce hormones (estrogen, inhibin) and are distinct from germ cell neoplasias - Account for <1% of testicular tumours *Incorrect: Seminoma* - Seminoma IS a germ cell tumour - the **most common type** in males (40-50% of testicular germ cell tumours) [1] - Originates from malignant germ cells in the testes [1] - Characterized by uniform cells, lymphocytic infiltrate, and excellent prognosis with radiation sensitivity [3] *Incorrect: Choriocarcinoma* - Choriocarcinoma IS a highly aggressive **germ cell tumour** that occurs in males (testicular origin) [1] - Produces **human chorionic gonadotropin (hCG)** - important tumor marker [2] - Can occur as pure choriocarcinoma or as part of mixed germ cell tumour [2] - Characterized by syncytiotrophoblast and cytotrophoblast cells [2] *Incorrect: Teratoma* - Teratoma IS a germ cell tumour composed of tissues from all three embryonic germ layers (ectoderm, mesoderm, endoderm) [1] - Common in males (testicular teratoma) - can be mature or immature [1] - In adult males, even mature teratomas have malignant potential unlike in children [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. 979-980. [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. [3] 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.
Explanation: ***Carcinoma scrotum*** - **Chimney sweepers' cancer** is a historical term for **squamous cell carcinoma of the scrotum**, first described by Percivall Pott in 1775. - It was linked to prolonged exposure to **soot**, a known carcinogen, in young chimney sweeps. *Carcinoma testis* - This is a cancer of the **testicles**, not typically associated with occupational exposure to soot or referred to as "chimney sweeper cancer." - It commonly presents as a **painless lump** in the testis. *Carcinoma lung* - While lung cancer can be linked to occupational exposures (e.g., asbestos, smoking), it is not called "chimney sweeper cancer." - It primarily affects the **respiratory system**. *Carcinoma skin* - Skin cancer can be caused by various factors, including **UV radiation**, but the term "chimney sweeper cancer" specifically refers to scrotal carcinoma due to soot exposure. - It can occur on any skin surface, unlike the specific scrotal location.
Explanation: ***Carcinosarcoma*** - Carcinosarcomas (also known as **Malignant Mixed Mullerian Tumors**) are characterized by a biphasic histology, containing both **malignant epithelial (carcinomatous)** and **malignant mesenchymal (sarcomatous)** components [1], [2]. - The presence of **malignant glands** (epithelial component) and **malignant stromal elements**, including **striated muscle** and **cartilage** (both heterologous mesenchymal components), is pathognomonic for carcinosarcoma [1]. *Endometrioid adenocarcinoma* - This is a **pure epithelial malignancy** composed of malignant glandular structures resembling normal endometrial glands [2]. - It **lacks the malignant mesenchymal (stromal) elements** that are a key feature in the patient's presentation. *Pleomorphic adenoma* - This tumor is typically found in **salivary glands** not the uterus, and is a **benign mixed tumor** with both epithelial and stromal components, usually without malignant transformation in the initial presentation. - The uterine bleeding, enlarged uterus, and malignant histologic findings are **inconsistent with a pleomorphic adenoma**, which is also a type of salivary gland tumor. *Leiomyosarcoma* - This is a **pure mesenchymal malignancy** composed of smooth muscle cells with evidence of malignancy, such as increased mitotic activity, nuclear atypia, and coagulative necrosis. - It **lacks the malignant glandular (epithelial) component** found in this patient's tumor. **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. 1022-1024.
Diseases of Male Genital Tract
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Prostate Pathology
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Diseases of Female Genital Tract
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Cervical Pathology and Neoplasia
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Endometrial Pathology
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