Definition/General

Introduction:
-Cervical condyloma (condyloma acuminatum) is a benign epithelial proliferation caused by low-risk human papillomavirus (HPV) types, primarily HPV 6 and 11
-It represents a sexually transmitted viral infection of the cervical epithelium.
Origin:
-Results from infection of basal epithelial cells by low-risk HPV types
-Viral replication occurs in differentiating squamous epithelium, leading to characteristic morphological changes and epithelial proliferation.
Classification:
-WHO Classification categorizes as benign HPV-related epithelial lesion
-Distinguished from high-risk HPV lesions (CIN) by viral type and morphological features.
Epidemiology:
-Common sexually transmitted infection
-Peak incidence 15-30 years
-More frequent in immunocompromised patients
-Often coexists with genital condylomas.

Clinical Features

Presentation:
-Visible warty lesions on cervix
-Abnormal Pap smear showing HPV changes
-May be asymptomatic
-Can cause abnormal vaginal discharge or bleeding.
Symptoms:
-Often asymptomatic
-Abnormal vaginal discharge
-Post-coital bleeding
-Visible cervical lesions
-Itching or irritation
-May cause dyspareunia.
Risk Factors:
-Sexual activity
-Multiple sexual partners
-Young age at first intercourse
-Immunosuppression
-Smoking
-Other STIs
-Poor genital hygiene.
Screening:
-Pap smear shows koilocytic changes
-HPV testing identifies low-risk types
-Colposcopy reveals acetowhite lesions
-Visual inspection shows warty appearance.

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Gross Description

Appearance:
-Warty, papillary, or flat lesions on cervical surface
-White to pink coloration
-Rough, irregular surface texture
-May be single or multiple.
Characteristics:
-Variable size (few mm to several cm)
-Warty, cauliflower-like appearance
-White to pink color
-Rough surface texture
-Soft consistency.
Size Location:
-Can occur anywhere on cervix
-Often involves transformation zone
-May extend to vagina
-Can be focal or multifocal.
Multifocality:
-Often multiple lesions
-May involve both ectocervix and endocervix
-Can be associated with vaginal and vulvar condylomas.

Microscopic Description

Histological Features:
-Acanthotic squamous epithelium with papillary architecture
-Characteristic koilocytes (cells with perinuclear halos and nuclear irregularities)
-Hyperkeratosis and parakeratosis.
Cellular Characteristics:
-Koilocytes: enlarged cells with perinuclear clearing and wrinkled, hyperchromatic nuclei
-Multinucleation common
-Increased mitotic activity in basal layers.
Architectural Patterns:
-Papillary epithelial proliferation
-Acanthosis with regular maturation
-Surface hyperkeratosis
-Orderly progression from basal to surface layers.
Grading Criteria:
-Benign lesion (no grading system)
-Distinguished from CIN by preservation of epithelial maturation and absence of high-grade dysplastic changes.

Immunohistochemistry

Positive Markers:
-p16 may show patchy positivity (unlike diffuse staining in high-risk HPV)
-Ki-67 elevated in basal third
-CK5/6 positive.
Negative Markers:
-High-risk HPV typically negative
-p53 shows wild-type pattern
-Neuroendocrine markers negative.
Diagnostic Utility:
-p16 staining pattern helps distinguish from high-risk HPV lesions
-HPV in situ hybridization can identify specific viral types.
Molecular Subtypes:
-Associated with low-risk HPV types (6, 11)
-HPV 6 and 11 account for >90% of genital condylomas.

Molecular/Genetic

Genetic Mutations:
-No significant cellular genetic alterations
-Viral genome may be episomal or integrated
-Low-risk HPV lacks E6/E7 transforming potential of high-risk types.
Molecular Markers:
-Low-risk HPV DNA detectable by PCR or in situ hybridization
-p16 shows patchy, not diffuse staining
-Ki-67 elevated but confined to lower epithelial layers.
Prognostic Significance:
-Excellent prognosis as benign lesion
-No malignant potential
-May resolve spontaneously with immune response
-Can recur if incompletely treated.
Therapeutic Targets:
-Topical therapies (imiquimod, podophyllin)
-Cryotherapy
-Laser ablation
-Surgical excision
-HPV vaccination for prevention.

Differential Diagnosis

Similar Entities:
-Cervical intraepithelial neoplasia (CIN)
-Squamous papilloma
-Verrucous carcinoma
-Seborrheic keratosis
-Reactive squamous hyperplasia.
Distinguishing Features:
-Condyloma: koilocytes, low-risk HPV
-CIN: dysplastic changes, high-risk HPV, p16 diffuse positive
-Verrucous carcinoma: invasion, no HPV.
Diagnostic Challenges:
-Distinction from flat condyloma and CIN 1
-Identification of koilocytic changes
-Differentiation from reactive epithelial changes.
Rare Variants:
-Flat condyloma
-Giant condyloma (Buschke-Löwenstein tumor)
-Condyloma with secondary bacterial infection.

Sample Pathology Report

Template Format

Sample Pathology Report

Complete Report: This is an example of how the final pathology report should be structured for this condition.

Specimen Information

[specimen type], measuring [size] cm in greatest dimension

Diagnosis

[diagnosis name]

Classification

Classification: [classification system] [grade/type]

Histological Features

Shows [architectural pattern] with [nuclear features] and [mitotic activity]

Size and Extent

Size: [X] cm, extent: [local/regional/metastatic]

Margins

Margins are [involved/uninvolved] with closest margin [X] mm

Lymphovascular Invasion

Lymphovascular invasion: [present/absent]

Lymph Node Status

Lymph nodes: [X] positive out of [X] examined

Special Studies

IHC: [marker]: [result]

Molecular: [test]: [result]

[other study]: [result]

Prognostic Factors

Prognostic factors: [list factors]

Final Diagnosis

Final diagnosis: [complete diagnosis]