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Penile Tumor: Differential Diagnosis
Benign Penile Tumors
- Genital ulcers: syphilis, chancroid, genital herpes, granuloma inguinale and lymphogranuloma venereum.
- Viral infections: genital herpes, condyloma acuminatum.
- Balanitis xerotica obliterans
- Leukoplakia: white patches usually as a result of chronic irritation. Histological criteria for leukoplakia are hyperkeratosis, parakeratosis and dermal edema.
- Epidermoid cyst is caused by scattered epidermal cells which produce an elastic tumor under the skin. The wall of an epidermoid cyst has a thin layer of squamous epithelium.
- Retention cysts are caused by the blockage of a duct of sebaceous glands. They are found congenital near the raphe or are acquired after circumcision or trauma.
- Diseases of the penile shaft: Peyronie disease, thrombophlebitis (Mondor's disease), fibromas, neuromas, Angioma. Scarring after self-manipulation or trauma.
Malignant Penile Tumors
- Precancerous lesions: Bowen disease (= erythroplasia of Queyrat)
- Buschke-Löwenstein Tumor: giant condyloma acuminatum (verrucous carcinoma)
- Penile cancer
- Basal cell carcinoma
- Kaposi sarcoma, other sarcomas are rare
- Malignant melanoma
- Paget disease
- Lymphoma of the penis
- Urethral carcinoma
- Penile metastases
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Deutsche Version: Differentialdiagnose Penistumor