Penis Flashcards
What is hypospadias?
Opening of urethra on inferior surface of penis
What causes hypospadias?
Failure of urethral folds to close
What is epispadias?
Opening of the urethra on the superior surface of penis
What causes epispadias?
Abnormal positioning of the genital tubercle
What is a condyloma acuminatum?
Benign warty growth on genital skin
What causes caondyloma acuminatum?
HPV 6,11
Histo of condyloma acuminatum is characterized by?
Koilocytic change
What is lymphogranuloma venereum?
Necrotizing granulomatous inflammation of the inguinal lymphatics and lymph nodes
What pathogen causes lymphogranuloma venereum?
Chlamydia trachomatis (serotypes L1-L3)
How does lymphogranuloma venereum heal?
Eventually heals with fibrosis
Perianal involvement may result in rectal stricture
What are the risk factors of squamous cell carcinoma?
high risk HPV (16, 18, 31, 33)
Lack of circumcision
What are the precursor lesions of squamous cell carcinoma?
Bowen disease
Erythroplakia of Queyrat
Bowenoid papulosis
What is Bowen disease?
In situ carcinoma of the penile shaft of scrotum that presents as leukoplakia
What is erythroplasia of Queyrat?
In situ carcinoma on the glans that presents as erythroplakia
What is bowenoid papulosis?
In situ carcinoma that presents as multiple reddish papules
Does not progress to invasive carcinoma
