Trichoepithelioma (synonyms: adenocystic epithelioma of Brooke, trichoepithelioma nevus, etc.) represents a developmental disorder of the hair follicle and sweat glands.
Erythroplasia Keira is considered as an intra-epidermal cancer and belongs to the carcinoma group in situ. In the development of the disease, non-observance of personal hygiene is of great importance. Many dermatologists believe that Keira's erythroplasia is a variant of Bowen's mucous and semilucid diseases.
Squamous cell carcinoma of the skin (synonym: spinal cell carcinoma, spinaloma) is the most malignant tumor of all epithelial skin newly formed. It occurs mainly in the elderly, equally common in men and women.
Dermatofibrosarcoma bulging arises usually in men between the ages of 30 and 40 years, but it can also be in children. The tumor is often located in any part of the skin, but more often on the trunk.
In the emergence of the disease an important role is assigned to the 3rd and 5th types of human papillomavirus (HPV-3 and HPV-5). It is possible to transform verandiiform epidermodysplasia of Lewandowski-Lutz into squamous cell carcinoma or Bowen's disease. There is information about the important role of hereditary factors.
Angiosarcoma (synonym: malignant hemomanioendothelioma) is a tumor that develops from the endothelial cells of blood vessels. The disease is often localized to the scalp and face, but can also occur in other sites in older men.
Carcinoid papillomatosis of Gotthron skin is a rare disease first described by Gottron in 1932. The causes and pathogenesis of carcinoid papillomatosis in Gotthron skin have not been studied enough. In the development of the disease, great importance is attached to chronic long-lasting diseases and mechanical injuries.
The origin of the cylinders is unclear. They consider it to be an ecrcrinic tumor, but some believe that it develops from the apocrine glands, as well as the hair structures. The presence of family cases indicates an autosomal dominant type of inheritance.
Leiomyoma of the skin is common in men. Element of defeat is a hemispherical dense knot of round or oval shape, the size of a pinhead to a lentil, a large bean and more, stagnant red, brownish, bluish-reddish color.
