Palmoplantar psoriasis is a variety of pustular psoriasis that affects exclusively the skin of the palms and feet. The primary element is a bright pink papule that transforms into a plaque that occurs against the background of hyperemia of the skin surface, accompanied by itching and peeling. Plaques merge with each other, forming foci of…
Psoriasis (scaly lichen) is a chronic non–contagious disease affecting the skin, nails and joints. It is characterized by the appearance of a monomorphic rash on the skin: nodules of bright pink color, covered with silver scales. The elements of the rash can merge into various configurations resembling a geographical map. Accompanied by moderate skin itching.…
Pseudofurunculosis is a purulent lesion of sweat glands that develops when staphylococci or other pathogens enter them. The infectious process in pseudofurunculosis captures not only the ducts of the sweat glands, but also their glomeruli. It is characterized by the appearance of dense nodules in the subcutaneous tissue, the skin above which has a healthy…
Pseudo-syringomyelic acropathy is a rare chronic systemic disease of unclear etiology, the skin manifestations of which are based on dystrophic changes. Usually affects the lower extremities. It is clinically manifested by the formation of ulcers on the plantar surface of the feet against the background of loss of temperature sensitivity, hyperhidrosis, onychodystrophy, ankylosing joints and…
Acroangiodermatitis is a benign vascular hyperplasia with a predominant lesion of the lower extremities, which in clinical and histological manifestations resembles Kaposi’s sarcoma. It is characterized by the appearance of spots and papules on the skin of the feet and shins, which gradually turn into plaques of red-purple or bluish color. The diagnosis is established…
Occupational dermatoses are a large group of skin diseases associated with industrial activity. The clinical manifestations of occupational dermatoses are diverse, correspond to the clinic of analogous diseases that do not have a professional component. It can be dermatitis, eczema, vitiligo, vasculitis, porphyria, lichen, keratosis, urticaria. The diagnosis is based on anamnesis, statement of the…
Occupational eczema is a chronic sluggish inflammatory skin disease that develops during professional activity due to exposure to irritating substances. It often occurs against the background of allergic dermatitis. It is characterized by redness of the skin, the formation of bubbles and papules, wetness and itching. In the diagnosis of professional eczema, the main importance…
Contact dermatitis is an inflammatory reaction of the skin that occurs in response to direct exposure to irritating substances (alkalis, acids, detergents, solvents, bleach, etc.). The symptoms of the disease depend on the strength and nature of the exposure. This may be redness of the skin, dryness and cracks, swelling, blistering or ulceration covered with…
Precancerous skin diseases are a group of dermatological diseases against which malignant tumors can develop. It is conditionally divided into two subgroups: optional (with optional malignancy) and obligate (with a high probability of malignancy). They are single or multiple nodules, growths, foci of hyperkeratosis, papules, pigment spots or foci of irritation of various colors, sizes…
Prurigo is an itchy dermatosis, the main elements of the rash in which are small nodules with small bubbles in the center. Pronounced itching leads to scratching of rash sites and the appearance of deep excoriation. A distinctive feature is the location of the rash on the extensor areas of the limbs without involving the…