Diseases of the skin and subcutaneous tissue (dermatology)

Comedonal nevus: causes, symptoms, diagnosis, treatment

Comedonal nevus (syn.: follicular keratotic nevus) may be present from birth or appear in puberty or later in life. Clinically, comedonal nevus is represented by multiple comedones, grouped in the form of ribbon-like cords of varying length or clusters of other configurations, usually unilateral localization, but bilateral variants have also been described.

Metatypical skin cancer: causes, symptoms, diagnosis, treatment

Metatypical skin cancer (syn.: basosquamous cancer, mixed cancer, intermediate carcinoma) can develop on unchanged skin, but often occurs against the background of pre-existing basalioma, especially after radiotherapy. The clinical manifestations of metatypical cancer in most cases do not differ from the clinical picture of basalioma and usually correspond to its tumor and ulcerated forms.

Bowen's disease

Bowen's disease (syn.: squamous cell carcinoma in situ, intraepidermal cancer) is a typical variant of non-invasive cancer, which most often appears on areas of the skin exposed to sunlight.

Soft leukoplakia: causes, symptoms, diagnosis, treatment

Soft leukoplakia was first described by B.M. Pashkov and E.F. Belyaeva (1964), and differs from the usual forms of leukoplakia by the presence of slightly raised white lesions on the mucous membrane of the cheeks, lips, and tongue, covered with soft scales that can be easily removed with a spatula.

Leukoplakia

Leukoplakia is a leukokeratosis that appears as milky-white spots on the mucous membranes covered with stratified squamous epithelium (oral cavity, vagina, red border of the lips), and develops as a result of exposure to local irritants, as well as inflammatory phenomena.

Actinitic keratosis: causes, symptoms, diagnosis, treatment

Actinitic keratosis (syn.: senile keratosis, solar keratosis) develops as a result of prolonged exposure to ultraviolet rays on exposed areas of the skin, usually in people over 50 years of age.

Keratoacanthoma: causes, symptoms, diagnosis, treatment

Keratoacanthoma (syn.: molluscum pseudocarcinomatosum, molluscum sebaceum, tumor-like keratosis) is a rapidly growing benign tumor, in the development of which significance is given to a viral infection, immune disorders, long-term exposure to various unfavorable, mainly exogenous, factors

Light-cell acanthoma: causes, symptoms, diagnosis, treatment

Clear cell acanthoma is a benign tumor of the epidermis, regarding which it belongs to true tumor processes, there is no consensus. According to some data, the pathological condition is probably based on disturbances in the maturation processes of epithelial cells.

Seborrheic keratosis: causes, symptoms, diagnosis, treatment

Seborrheic keratosis (syn.: seborrheic wart, senile wart, basal cell papilloma, seborrheic nevus of Unna, seborrheic keratopapilloma) is a benign tumor.

Fibropapilloma (fibroma) of the skin

Fibropapilloma (syn.: fibroma) is a benign tumor, which is a nodular formation of various shapes and sizes, protruding above the surface of the skin, sometimes on a narrower base.