Fundamentals.- Embryology of the male external genitalia and functional anatomy.- Diagnosis.- Fundamentals in dermatopathology.- Non-Infectious Inflammatory Disorders of the Male Genitalia.- Eczematous dermatoses.- Papulosquamous dermatoses.- Ulcerative dermatoses.- Vesicobullous dermatoses.- Granulomatous dermatoses.- Infectious Disorders of the Male Genitalia.- Non-sexually transmitted infections.- Sexually transmitted infections.- Benign Specialized Disorders of the Male Genitalia.- Pigmentary lesions/pigmentary skin changes.- Cystic/Nodular/Papular lesions.- Vascular lesions.- Miscellaneous benign disorders.- Systemic Diseases and the Male External Genitalia.- Systemic disorders affecting the genital skin.- Premalignant and Malignant Disorders of the Male Genitalia.- Premalignant lesions of the penis.- Squamous cell carcinoma and secondary tumors of the penis and scrotum.- Non-squamous malignant neoplasms of the penis and scrotum.