Histology distinguishes the following types - superficial multicentric, sclerodermal and fibro-epithelial basalioma. Signs of the formation of the disease. A malignant formation in the formation on the skin area constantly increases in size. Sometimes fix basalioma more than 100 mm. Symptoms of pathology in the early stages of formation are not pronounced - a small bubble of a pinkish-gray hue appears on the skin. On palpation, it is felt as a dense formation, covered with a crust on top.
Sometimes with basalioma, an erosive area can be observed that goes deep into the skin layer. Signs of such a pathology are the presence of central ulceration. If the crust separates from the nodule, bloody discharge from the foci of ulceration is noticeable. Around the affected area there is a border of transparent bubbles. The focus is constantly moving inside the epidermal layer, and the surface layer begins to peel off.