Argyria is a dermatological disease that occurs due to the increased intake of silver ions into the body and its subsequent deposition in the skin and its appendages. The main symptom of the disease is darkening of the skin and mucous membranes up to a bluish-gray shade, in severe cases, visual disturbances are also observed.…
Anetoderma is a focal atrophy of the skin with an unclear etiology, in which there is a predominant lesion of the elastic fibers of the dermis. Symptoms of this disease are the appearance of foci of various shapes and sizes on the skin of the trunk and extremities, the level of which is below or…
Angiokeratoma is a formation on the skin consisting of expanded subepidermal capillaries and accompanied by hyperkeratosis and other keratinization disorders. It represents neoplasms of various sizes (from 2 to 15 millimeters) of reddish, brown or almost black color. Diagnosis is carried out on the basis of examination of the patient’s skin, dermatoscopy, histological examination of…
Anhidrosis is a pathology of sweating, in which the secretion of sweat decreases sharply or stops completely. Local disturbance leads to dryness and cracking of the skin, the development of dermatitis; the general is characterized by a disorder of thermoregulation, a decrease in tolerance to physical exertion, severe intoxication. In acute general anhidrosis, the patient…
Cutaneous amyloidosis is a consequence of a chronic pathological process in which amyloid is deposited in the skin in the form of rounded or pointed foci – an insoluble compound of fibrillar protein and polysaccharide, which is unusual for the body in normal conditions. Deposits have the appearance of papules, nodules, plaques of a solid,…
Allergic contact dermatitis is an inflammatory skin disease that occurs in the place of its direct contact with an allergen. Allergic contact dermatitis is characterized by swelling and redness of the tissues that have come into contact with the allergen, itching, the appearance of papules and bubbles. Diagnosis is based on anamnesis and clinical data,…
Actinomycosis is an infectious disease caused by radiant fungi (actinomycetes) and has a primary chronic course with the formation of dense granulomas, fistulas and abscesses. Disease can affect not only the skin, but also internal organs. The diagnosis of the disease is based on the detection of a characteristic mycelium of fungi in the separated…
Actinic keratosis is a widespread (especially among the elderly) disease with a slow, steadily progressive course, the occurrence of which is provoked by exposure to direct sunlight on the skin. The primary element is an oval peeling spot localized in open areas of the skin, which quickly transforms into a keratoacanthoma – a benign neoplasm…
Actinic dermatitis is an inflammation of the skin that occurs as a result of radiation exposure. Actinic dermatitis can be caused by sunlight, artificial sources of UV radiation and ionizing radiation. The clinical picture of dermatitis depends on the intensity and time of exposure to radiation on the skin. Treatment of actinic dermatitis includes the…
Acrodermatitis continua is a pustular skin disease of unclear etiology and pathogenesis, characterized by localization of the pathological process in the extremities. The clinic is dominated by a rash of primary elements in the form of pustules, which tend to merge. Initially, as a rule, the thumb of the hand is affected, then other fingers, the…
