Diseases of the skin and subcutaneous tissue (dermatology)

Gangrenous pyoderma

Gangrenous pyoderma is a chronic, progressive necrosis of the skin of an unknown etiology, often associated with a systemic disease.

Cutaneous leishmaniasis: causes, symptoms, diagnosis, treatment

Leishmaniasis cutaneous (synonyms: Leishmaniasis of the Old World, Borovsky's disease) is an endemic transmission disease, found mainly in countries with hot and warm climates, manifested primarily by skin lesions.

Mastocytosis (pigmented urticaria)

Mastocytosis (synonym: pigment urticaria) is a disease based on the accumulation of mast cells in various organs of tissues, including the skin. Clinical manifestations of mastocytosis are due to the release of biologically active substances in mast cell degranulapia.

Keloid and hypertrophic scars: causes, symptoms, diagnosis, treatment

The causes of keloid and hypertrophic scars are unknown. Scars usually appear at the site of skin damage - after surgery, cryo-or electrodestruction, in the place of wounds, abrasions, acne vulgaris. They can also arise spontaneously, usually in the antero-thoracic region.

Livedo mesh (Melkersson-Rosenthal syndrome): causes, symptoms, diagnosis, treatment

The net levido (the Melkerson-Rosenthal syndrome) was first described in 1928 by Melkersson. He observed a patient with recurrent paresis of the facial nerve and persistent edema of the lips, and in 1931 Rosenthal added a third symptom - a folded or tonguous tongue.

Livedo: causes, symptoms, diagnosis, treatment

Levido is not a disease, but a kind of skin reaction to a particular effect. In the development of levidia, the period of hyperemia (the initial stage) and the period of pigmentation are distinguished. Levido can remain unchanged for many years. Subjective sensations are absent.

Trophic ulcers

Trophic ulcers occur more often in the elderly due to acute or chronic venous or arterial insufficiency, more often - in women. There are varicose, ischemic and neurotrophic ulcers.

Angiokeratoma: causes, symptoms, diagnosis, treatment

Angiokeratoma occurs due to epithelial swelling and the formation of subepidermal extensions of capillary cavities, which is accompanied by reactive changes in the epidermis.

Skin vasculitis

Vasculitis (synonym: angiitis of the skin) - skin diseases, in the clinical and pathomorphological picture of which the primary and leading link is the nonspecific inflammation of the walls of vessels of different caliber skin.

Halits

Halits are chronic, more often inflammatory diseases of the lips of different etiology and pathogenesis. Among them, there are diseases in which a change in the lips is only one of the symptoms of known dermatitis. These include atopic cheilitis, eczema of the lips, and others.

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