<unk>  is a penile squamous cell carcinoma in situ named after Louis<unk> , a French dermatologist who was head of the dermatology service of l'Hôpital Ricord, a venereal hospital in Paris, now Hôpital Cochin.  The pathogenesis of<unk>  is characterized as a precancerous lesion of squamous cell carcinoma in situ of the glans penis and inner prepuce or foreskin.<unk>  is most commonly observed among white male patients aged 60 years old and older with Human papilloma virus (HPV) infection or chronic irritation and lack of hygiene of pubic area. The most common risk factor in the development of<unk>  is an uncircumcised penis. The mainstay of therapy for<unk>  is  imiquimod or 5-fluorouracil for several weeks to months.
Erythroplasia of Queyrat
Pachyonychia congenita
Keratosis pilaris
Linitis plastica
Onychophosis
Sterculia
Balanitis circinata
Dyschromatosis universalis