Female Genital Tract Pathology

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Questions and Answers

What histological feature predominates in Lichen Simplex Chronicus, differentiating it from other vulvar dermatoses?

  • Acanthosis with thickening of the prickle-cell layer (correct)
  • Eosinophilic spongiosis with intraepidermal vesicles
  • Mononuclear inflammatory infiltrate with plasma cells
  • Subepithelial fibrosis with hyalinization

In the context of vulvar malignancies, which histologic subtype is most frequently associated with a poorer prognosis due to its propensity for deep invasion and lymphovascular involvement?

  • Verrucous carcinoma
  • Squamous cell carcinoma (correct)
  • Adenoid cystic carcinoma
  • Basal cell carcinoma

Which of the following histopathological features is LEAST likely to be associated with Condyloma Acuminatum?

  • Koilocytosis
  • Parakeratosis
  • Acanthosis
  • Subepithelial fibrosis (correct)

Which of the following statements best differentiates differentiated vulvar intraepithelial neoplasia (dVIN) from usual vulvar intraepithelial neoplasia (uVIN)?

<p>dVIN is often associated with lichen sclerosus, whereas uVIN is commonly linked to smoking and immunosuppression. (C)</p> Signup and view all the answers

Which of the following is the most critical factor determining the prognosis of Vulvar Squamous Cell Carcinoma?

<p>Depth of tumor invasion (B)</p> Signup and view all the answers

Paget's disease of the vulva is characterized by intraepithelial adenocarcinoma; what is the origin of these malignant cells?

<p>Arising from apocrine glands (B)</p> Signup and view all the answers

Which of the following is the most common type of vaginal malignancy?

<p>Squamous cell carcinoma (A)</p> Signup and view all the answers

Diethylstilbestrol (DES) exposure in-utero is a risk factor for which of the following vaginal neoplasms?

<p>Clear cell adenocarcinoma (D)</p> Signup and view all the answers

Which of the following best describes the initial state of HPV during the pathogenesis of an HPV infection?

<p>It remains latent with a low proliferation rate (C)</p> Signup and view all the answers

What percentage of cervical carcinomas do Squamous cell carcinoma account for?

<p>80% (C)</p> Signup and view all the answers

According to FIGO staging for cervical cancer, microinvasion is defined as the early stage of squamous cell carcinoma with a depth of invasion less than:

<p>3mm (C)</p> Signup and view all the answers

What is the primary purpose of cervical cytology in cervical cancer prevention?

<p>Assessing for dyskaryosis in cells sampled from the cervix (A)</p> Signup and view all the answers

What is the primary function of colposcopy in the evaluation of cervical abnormalities?

<p>To directly visualize the cervix for the identification of abnormal areas. (C)</p> Signup and view all the answers

Which of the following is a method used for lesion excision in the management of cervical dysplasia?

<p>LLETZ (C)</p> Signup and view all the answers

A patient with Lichen Sclerosus is at an increased risk for developing:

<p>Differentiated VIN (C)</p> Signup and view all the answers

Which of the following is the preferred management for Differentiated VIN due to high risk of invasion?

<p>Surgical excision (D)</p> Signup and view all the answers

Which of the following statements about HPV is false?

<p>HPV primarily infects mature squamous cells (C)</p> Signup and view all the answers

Imiquimod stimulates the immune system by activating:

<p>Toll-like receptor 7 (TLR7) (A)</p> Signup and view all the answers

Identify the INCORRECT statement regarding features associated with HPV infection?

<p>Unlikely to cause malignancy of the vulva. (B)</p> Signup and view all the answers

Which of the following viral proteins is responsible for the integration of HPV DNA into the host cell genome?

<p>E6 (D)</p> Signup and view all the answers

Which of the following does NOT align with the key components of secondary prevention strategies for cervical cancer?

<p>HPV vaccination (A)</p> Signup and view all the answers

Which biomarker, when positive, indicates the presence of cellular atypia, which may warrant further evaluation for cervical abnormalities?

<p>P16INK4a (C)</p> Signup and view all the answers

What molecular mechanism is critically associated with the development of cervical cancer following persistent HPV infection?

<p>Inactivation of DNA repair mechanisms (B)</p> Signup and view all the answers

What is a critical aspect of managing cervical cancer effectively, involving a combination of cytology, colposcopy, and lesion excision?

<p>Risk-adapted screening (B)</p> Signup and view all the answers

Identify the most accurate explanation of how HPV vaccination contributes to global health advancements.

<p>Reducing cervical cancer incidence (B)</p> Signup and view all the answers

What key feature distinguishes adenocarcinoma of the cervix from squamous cell carcinoma at the cellular level?

<p>Production of mucin (B)</p> Signup and view all the answers

What underlying genetic defect contributes substantially to the development of cervical cancer?

<p>TP53 mutations (D)</p> Signup and view all the answers

Which of the following statements best explains the importance of desmoplasia patterns in staging cervical cancer?

<p>Desmoplasia indicates a cancer stage, and it also affects treatment options. (A)</p> Signup and view all the answers

Which of the following would NOT fall under the primary goal of an effective therapeutic strategy for cervical cancer?

<p>Preventing the integration of new viral DNA (A)</p> Signup and view all the answers

Which of the following is a characteristic feature of Lichen Sclerosus?

<p>Is an inflammatory condition associated with subepithelial fibrosis, atrophy, and scarring. (B)</p> Signup and view all the answers

A patient presents with vulvar itching and examination reveals areas of thickened skin. A biopsy shows acanthosis with hyperkeratosis. Which condition is most likely?

<p>Lichen Simplex Chronicus. (C)</p> Signup and view all the answers

Which of the following vulvar neoplasms is considered benign?

<p>Papillary Hidradenoma. (C)</p> Signup and view all the answers

What is the significance of Koilocytosis in the context of Condyloma Acuminatum?

<p>Represents a cytopathic effect of HPV infection. (C)</p> Signup and view all the answers

Which of the following factors is associated with an increased risk of progression to invasive carcinoma in patients with vulvar intraepithelial neoplasia (VIN)?

<p>Immunosuppression. (A)</p> Signup and view all the answers

Differentiated VIN (dVIN) is distinct from usual VIN (uVIN) in that dVIN is:

<p>Genetically related to mutations in tumor suppressor genes such as p53. (D)</p> Signup and view all the answers

What is the preferred management strategy for Differentiated VIN (dVIN) due to its high risk of invasion?

<p>Surgical excision. (C)</p> Signup and view all the answers

Which factor indicates a poorer prognosis in vulvar squamous cell carcinoma?

<p>Increased depth of invasion. (A)</p> Signup and view all the answers

Paget's disease of the vulva is characterized by which key feature?

<p>Intraepithelial adenocarcinoma cells within the epidermis. (C)</p> Signup and view all the answers

What is the origin of Paget cells found in Paget's disease of the vulva?

<p>Apocrine glands. (B)</p> Signup and view all the answers

Diethylstilbestrol (DES) exposure in utero is a risk factor for which type of vaginal neoplasm?

<p>Clear cell adenocarcinoma. (B)</p> Signup and view all the answers

In the context of cervical cancer development, what role does the integration of HPV DNA into the host cell genome play?

<p>It can disrupt normal cell cycle regulation and increase the risk of malignant transformation. (D)</p> Signup and view all the answers

Which of the following cell types is primarily assessed when evaluating a cervical cytology (Pap smear)?

<p>Squamous and glandular cells. (B)</p> Signup and view all the answers

What is the primary objective when performing a colposcopy?

<p>To visualize the cervix directly and identify any abnormal areas for biopsy. (A)</p> Signup and view all the answers

Which of the following methods is used for lesion excision in the management of cervical dysplasia?

<p>Cone biopsy. (D)</p> Signup and view all the answers

Which of the following is the most common type of cervical carcinoma?

<p>Squamous cell carcinoma. (A)</p> Signup and view all the answers

According to the FIGO staging system for cervical cancer, what factor is crucial in determining the stage of the disease?

<p>Depth of invasion. (D)</p> Signup and view all the answers

How does HPV vaccination contribute to the prevention of cervical cancer?

<p>It prevents new HPV infections. (C)</p> Signup and view all the answers

Imiquimod is sometimes used in the treatment of vulvar lesions. How does Imiquimod work?

<p>Stimulates the immune system by activating Toll-like receptor 7 (TLR7). (B)</p> Signup and view all the answers

Which statement accurately describes the relationship between HPV infection and cervical cancer?

<p>Persistent infection with high-risk HPV types is a key factor in the development of cervical cancer. (B)</p> Signup and view all the answers

Which of the following is the most likely age range for the highest incidence of cervical cancer?

<p>Between 30 and 39 years. (C)</p> Signup and view all the answers

What is a key feature that distinguishes adenocarcinoma of the cervix from squamous cell carcinoma?

<p>Arising from glandular cells of the endocervix. (C)</p> Signup and view all the answers

Which of the following features is associated with condyloma acuminatum?

<p>Presence of koilocytes. (A)</p> Signup and view all the answers

What is the role of desmoplasia in the context of cervical cancer?

<p>It is an indicator of a more aggressive phenotype. (D)</p> Signup and view all the answers

What cellular process does cervical screening (cytology/HPV testing) primarily assess?

<p>Dyskaryosis. (D)</p> Signup and view all the answers

A patient treated for cervical dysplasia with LLETZ (Large Loop Excision of the Transformation Zone) asks about the procedure. What is the best description of LLETZ?

<p>The excision of the cervical transformation zone using an electric loop. (D)</p> Signup and view all the answers

In the context of HPV infection and cervical cancer, what is meant by the term 'episomal replication'?

<p>The self-replicating state of HPV DNA within the host cell's nucleus. (A)</p> Signup and view all the answers

Which of the following statements correctly describes the role of cytology in cervical cancer prevention?

<p>It identifies cellular abnormalities, guiding further investigation. (A)</p> Signup and view all the answers

How does persistent infection with high-risk subtypes of Human Papillomavirus (HPV) lead to the development of cervical cancer?

<p>Through repetitive cycles of cellular damage and repair, leading to genetic instability. (A)</p> Signup and view all the answers

Which of the following options best defines the term 'dyskaryosis' as it relates to cervical cytology?

<p>Abnormal changes in the cell nucleus. (C)</p> Signup and view all the answers

Flashcards

Lichen Sclerosus

A chronic vulvar condition that may present at any age, characterized by inflammation, subepithelial fibrosis, atrophy, and scarring, associated with a risk of subsequent malignancies.

Lichen Simplex Chronicus

A non-specific diagnosis characterized by microscopic features that develop as a response to chronic itch.

Papillary Hidradenoma

A benign vulvar tumor, histologically equivalent to intraduct papilloma of the breast.

Condyloma Acuminatum

A benign vulvar tumor characterized by acanthosis, parakeratosis, hyperkeratosis, and evidence of HPV infection, often with koilocytosis.

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Age and VIN Progression

A risk associated with Usual VIN progression to invasive tumor as individuals age.

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Immunosuppression and VIN

A risk associated with Usual VIN progression to invasive tumor due to weakened immune response.

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Usual VIN (uVIN)

A type of Vulvar Intraepithelial Neoplasia linked to high-risk HPV, with similar pathogenesis to cervical cancer.

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Differentiated VIN (dVIN)

A type of Vulvar Intraepithelial Neoplasia not related to HPV, associated with tumor suppressor gene involvement, and may develop quickly on a background of lichen sclerosus.

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Vulvar Squamous Cell Carcinoma

A type of cancer with poor prognosis associated with increased depth of invasion and presence of lymphovascular invasion.

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Paget Disease (of Vulva)

A red, crusted skin lesion characterized by clusters/individual tumor cells in the epidermis, clear halo, and granular cytoplasm, originating from apocrine glands.

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Diethylstilbestrol (DES)

A synthetic form of estrogen, associated with adenocarcinoma of the vagina.

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Squamous Cell Carcinoma (Cervix)

A common carcinoma of the cervix, accounting for 80% of cases.

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Adenocarcinoma (Cervix)

A less common carcinoma of the cervix, accounting for 15% of cases.

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HPV infection

The primary cause of cervical squamous cell carcinoma

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Cytology

A cervical screening method involving the assessment for dyskaryosis in squamous and glandular cells.

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Colposcopy

Direct visualisation of cervix that allows biopsy/treatment to remove lesions.

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Cervical Screening

Prevention measures to prevent the development of cervical carcinoma.

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High Risk HPV

Viral infection that can lead to the development of abnormal cell growth.

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Vulvar Intraepithelial Neoplasia (VIN)

A lesion that can progress to squamous cell carcinoma.

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Vulvar SCC

A squamous cell carcinoma with poor prognosis

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Paget Disease (of the vulva)

A rare adenocarcinoma characterized by malignant glandular cells within the epidermis.

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Squamous Cell Carcinoma

Most common cervical cancer

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Adenocarcinoma

A rarer form of the cervical malignancy.

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Lesion Excision

A method used to remove lesions.

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Excision of Lesion

Procedure to remove lesions from the cervix.

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Study Notes

  • Study notes on the pathology of the female genital tract.
  • Class of Year 2 Pathology, lectured by Professor Paul Murray in 2025

Learning Objectives

  • Discuss vulval pathologies, list neoplasms of the vagina, and describe the anatomy of the cervix.
  • Discuss cervical neoplasms, emphasizing HPV's role, HPV vaccination, and the natural history/progression of cervical neoplasms.

Vulvar Dystrophies

  • Includes Lichen Sclerosus and Lichen Simplex.

Lichen Sclerosus (et Atrophicus)

  • Can occur at any age; it is an inflammatory condition involving subepithelial fibrosis, atrophy, and scarring.
  • Is associated with a risk of subsequent malignancies.

Lichen Simplex Chronicus

  • It is a non-specific diagnosis with microscopic features responding to chronic itch.
  • Features include acanthosis (benign thickening of the prickle-cell layer), hyperkeratosis, and variable inflammatory infiltrate in the dermis.

Vulval Neoplasms

  • Benign types include Papillary Hidradenoma and Condyloma Acuminatum.
  • Malignant types include Carcinoma (with VIN as a precursor to SCC, and Paget's disease) and Melanoma.

Benign Tumors

  • Papillary hidradenoma is essentially the intraduct papilloma of the breast.
  • Condyloma acuminatum includes acanthosis, parakeratosis, hyperkeratosis, and evidence of HPV infection like koilocytosis.
  • Condyloma acuminatum is linked to HPV types 6 & 11, which are low-risk viruses.
  • Parakeratosis means incomplete maturation of epidermal keratinocytes, leading to retained nuclei in the stratum corneum.

Vulval Intraepithelial Neoplasia (VIN)

  • High-risk HPV leads to VIN, then carcinoma.
  • Has similar pathogenesis and grading system as in the cervix.
  • Risk of progression to invasive tumor rises with age and immunosuppression.

Usual VIN vs. Differentiated VIN

  • Usual VIN is linked to high-risk HPV, especially HPV 16, and is more common in younger women (30-50 years).
  • Risk factors for Usual VIN include smoking and immunosuppression, with a lower SCC progression risk if untreated (~10%).
  • Management of Usual VIN: surveillance, excision, imiquimod, or laser ablation.
  • Differentiated VIN is not HPV-related, found in older, postmenopausal women (>50 years.)
  • A risk factor for differentiated VIN is Lichen sclerosus, with a higher risk of SCC progression if untreated (~30-50%).
  • Management of differentiated VIN: surgical excision due to the heightened invasion risk.
  • Imiquimod stimulates the immune system by activating Toll-like receptor 7 (TLR7), producing interferon-α and cytokines, boosting cytotoxic T-cell activity, and inducing apoptosis in HPV-infected cells.

Vulva: Squamous Cell Carcinoma

  • Poor prognosis correlates with increased invasion depth and the presence of lymphovascular invasion.

Paget Disease (of Vulva)

  • Presents as a red, crusted skin lesion with clusters or individual tumor cells in the epidermis and a clear halo around cells.
  • Features granular cytoplasm and tests PAS positive.
  • This intraepithelial adenocarcinoma has malignant glandular epithelial cells (Paget cells) within the epidermis, which originate from apocrine glands.

Vagina: Tumors

  • Squamous cell carcinoma is related to HPV, and VaIN is a precursor (Vaginal Intraepithelial Neoplasia).
  • Adenocarcinoma risks include DES exposure, especially clear cell carcinoma.
  • Embryonal Rhabdomyosarcoma presents as Sarcoma botryoides.
  • Diethylstilbestrol (DES) is a synthetic estrogen prescribed from 1940 to 1971 to prevent pregnancy complications.

Cervical Carcinoma

  • Consists of 80% squamous cell carcinoma and 15% adenocarcinoma.
  • Rarer tumors include neuroendocrine and adeno-squamous carcinoma.

HPV Life Cycle in the Cervix

  • HPV pathogenesis begins with the virus latent in the epithelial cell, having a low proliferation rate.
  • The proliferation rate increases as the virus enters the lytic cycle.
  • Viruses assemble, leave the keratinocytes, and repeat the infection cycle.

Cervical Cancer Prevention

  • Includes cervical screening: cytology/HPV testing, cervical examination (colposcopy), and lesion excision.

Cytology

  • Assesses for dyskaryosis in squamous and glandular cells; identifies abnormalities.

Colposcopy

  • Direct visualization of the cervix.
  • Facilitates biopsy/treatment by removing lesions.

Excision of Lesion

  • Includes large biopsy, LLETZ (Large Loop Excision of the Transformation Zone), cone biopsy, and hysterectomy.

Differentiated VIN

  • Not HPV related, tumour suppressor genes are involved, notably p53.
  • May develop quickly on the background of Lichen Sclerosus

Staging of Cervical Cancer

  • FIGO and TNM staging systems are very similar.
  • Microinvasion means early squamous cell carcinoma, with a depth of less than 3mm pose very low risk.
  • Recent studies indicates the pattern of invasion, especially desmoplasia, is an important prognostic factor.

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