List Diseases – L
Lyell's syndrome (synonyms: acute epidermal necrolysis, toxic epidermal necrolysis) is a serious toxic-allergic disease that threatens the patient's life, is characterized by intensive detachment and necrosis of the epidermis with the formation of extensive blisters and erosions on the skin and mucous membranes.
Lyell's syndrome is one of the most severe lesions of the drug genesis. In children it is rare. It develops with the use of several drugs (antibiotics, sulfonamides, non-steroidal anti-inflammatory drugs, anticonvulsants), less often - blood and plasma transfusions. A certain role is played by hereditary predisposition.
Tuberculosis of the skin is a chronic disease that occurs with exacerbations and relapses. Factors contributing to the development of exacerbation and relapse are insufficient duration of the main course of treatment, inadequacy of anti-relapse treatment, poor tolerance of anti-tuberculosis drugs, developing resistance to them strains of mycobacteria.
Lupus nephritis is a typical immunocomplex nephritis, the development mechanism of which reflects the pathogenesis of systemic lupus erythematosus in general. In systemic lupus erythematosus, polyclonal activation of B cells occurs, which can be caused either by a primary genetic defect or by a violation of T-lymphocyte function and a decrease in the ratio of CD4 + and CD8 + cells.
Lung cancer is a malignant lung tumor, usually classified as small cell or non-small cell cancer. Smoking cigarettes is a major risk factor for most tumor variants.
The effect of inhalation of toxic gases depends on the intensity and duration of exposure and the type of stimulus. Toxic effects predominantly damage the respiratory tract, causing tracheitis, bronchitis and bronchiolitis.
Lesions of the lungs should be diagnosed by physicians of any specialty, although the specifying diagnosis is carried out by therapists, pulmonologists and thoracic surgeons. The most common lung injury is inflammatory diseases: bronchitis and pneumonia, but it is necessary to clarify the concepts.
Lung diseases associated with the building are a heterogeneous group of diseases, the causes of which are associated with the environment of modern airtight buildings. Such buildings are characterized by sealed windows and dependence on heat supply, ventilation and air conditioning systems for air exchange.
Lumbago - an attack of lumbar pain as a result of the development of intervertebral hernia. Doctors distinguish such causes of lumbago: intervertebral hernia, which involves jamming the nerve roots, hypothermia, colds, bruises. In response to pain, muscles tend to strain, there is pain in the lower back and a headache.
Lower spastic paraparesis (paraplegia) develops with bilateral damage to the upper motor neurons (in the region of the paracentral lobules of the cerebral hemispheres) or in the lesion of the corticospinal tract (pyramidal) at the level of the subcortical areas, the brain stem or (more often) the spinal cord.
Low blood pressure, otherwise called hypotension, is not usually a long-term illness. For a certain part of the population, low blood pressure is the norm, and if it does not cause any inconvenience, then there is nothing to worry about, it's just the individual characteristics of your body.
"Low pulse" - often we hear this doctor's verdict and do not quite understand what it means, and also what such a pathological process can cause. In order to find out the nature of the low pulse, it is necessary to understand what the medical concept is in general.
Löffler syndrome is an allergic disease characterized by an increase in the number of eosinophils in the peripheral blood and the presence in one or both of the light transient eosinophilic infiltrates. Or - eosinophilic flying lung infiltrate, simple pulmonary eosinophilia, simple eosinophilic pneumonia.
Loalosis is a transmissible biohelminthosis. Sexually mature individuals parasitize in the skin, subcutaneous tissue, under the conjunctiva of the eye and under the serous membranes of various human organs. Larvae (microfilariae) circulate in the blood.
In 1955, Welch performed the first liver transplantation in dogs. In 1963, a group of researchers led by Starzla carried out the first successful liver transplantation in humans.
Liver invasion by germinating into it malignant tumors of neighboring organs, retrograde metastasis through the lymphatic ducts and spreading along the blood vessels is relatively rare.
A liver infarct is a focal hepatocellular necrosis resulting from focal ischemia of the liver of any etiology.
Liver granulomas can be caused by various causes and usually occur asymptomatically. However, diseases that cause granuloma formation may be accompanied by extrahepatic symptoms and / or lead to liver inflammation, fibrosis and portal hypertension.
There is no generally accepted definition of hepatic insufficiency (PN). Many clinicians under the PN understand the syndrome that develops in acute or chronic liver diseases, its main pathogenetic mechanism is liver-cell insufficiency and portal hypertension.
An enlarged liver — hepatomegaly — is noted in cases where the size of this vital organ exceeds the natural, anatomically determined parameters.