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Directory of Diseases (in the letter D)

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FAR-VISIBILITY ( synonym : hyperopia) is an optical defect of the eye in which the ability to see clearly at close range is impaired. In this case, the focus of the rays coming from the subject in question, after their refraction in ... more

DOWN DISEASE - a chromosomal disease in which a lag in mental and physical development is combined with a peculiar appearance of patients and insufficient functions of the endocrine glands (more often the thyroid ... more

TARGET CHAIR - see Melena

Disorientation - disorientation of orientation in a place, time and self caused by a disturbance of consciousness, delusional perception of reality or impaired memory. Patients look bewildered, noted ... more

DELIRIUM (syn.: Delirious syndrome) - acute impairment of consciousness with disorientation and experiencing fear, visual hallucinosis, severe motor excitement, often with aggressive or suicidal ... more

DEMENTIA - a form of acquired dementia; persistent decrease in the level of mental, primarily intellectual, activity. Distinguish alcoholic, atherosclerotic, paralytic, traumatic, ... more

DEPERSONALIZATION - a disorder of mental activity in which there is a feeling of change in your thoughts, feelings, movements, your own body. As a rule, these phenomena occur against the background of an unclouded consciousness and ... more

DEPRESSIONS (syn: depressive syndrome) - a combination of dreary mood with a decrease in mental and physical activity. Depressive syndrome can occur with schizophrenia, epilepsy, reactive psychoses, ... more

DERALIZATION - a disorder of mental activity in which the perception of the environment is changed; it seems dull, gray, “not alive”, sounds are perceived muffled, heard as “through cotton wool”. With severe ... more

DERMATITIS - inflammatory skin diseases that occur as a result of direct exposure to physical or chemical factors, as well as substances of plant origin. Feature of dermatitis ... more

DERMATOPOLIMYOZIT - a systemic progressive disease with predominant damage to the muscles and skin; refers to diffuse diseases of the connective tissue. It occurs at any age, women predominate among patients ... more

CHILDREN'S CEREBRAL PARALYSIS develops as a result of damage to the brain, in utero, during childbirth or in the early period of a child's life as a result of infections, intoxications, vascular disorders or injuries. More common ... more

DIABETES NON-SUGAR ( synonym : diabetes insipidus) - a disease characterized by a sharp increase in the amount of urine excreted, constant thirst and dehydration of the body. It occurs with reduced secretion and ... more

DIATHESIS - a group of conditions characterized by a predisposition to certain diseases. They have a family character. The risk of a disease that arises only when exposed to a predisposed organism is inherited ... more

DYSENTERY (syn: shigellosis) is an infectious disease that occurs with intoxication, a predominant lesion of the distal colon, which is manifested by cramping abdominal pain and frequent loose stools with ... more

DIPLOPIA - doubling the image of the subject in question as a result of deviation of the visual axis of one of the eyes. The causes of diplopia can be damage to the eye muscles, disturbances in their innervation, pathological processes, ... more

DYSBACTERIOSIS (syn: dysbiosis) - a change in the composition and quantitative ratios of microflora, which normally populate hollow organs that communicate with the environment (for example, the upper respiratory tract, intestines), and human skin .... more

DYSPEPSY - a violation of the digestive processes. Depending on the cause of digestive disorders, dyspepsia is caused by dysfunction of one of the sections of the digestive system and insufficient production of those ... more

Dyspepsia in children is a digestive disorder that occurs as a result of a mismatch in the volume or composition of food with the physiological capabilities of the child's gastrointestinal tract. It is usually observed in children of the first year of life .... more

DISSEMINATED INTRAVASCULAR COAGING SYNDROME (DIC) is caused by the intensive entry into the bloodstream of substances that cause intravascular coagulation of sprinkles. It develops with all types of shock, extensive injuries (prolonged squeezing syndrome, etc.), ... more

DISSIMULATION - a characteristic of patients with some types of mental disorders desire to hide or minimize the manifestations of their illness (for delusional reasons or for fear of recognizing them as "crazy"). In connection with ... more

Dysphagia - a swallowing disorder due to a violation of the passage of food through the esophagus from the pharynx to the stomach. At the same time, patients complain of a feeling of “stuck” food along the way down, often painful. The reason may be: ... more

DYSFORIA - depressed mood with a touch of gloom, longing, gloomy discontent with spiteful irritability; typical for patients with epilepsy, often preceding an epileptic seizure, as well as patients ... more

DIPHYLOBOTRIOSIS - helminthiases from the group of cestodoses, the causative agents of which are tapeworms belonging to the genus Di-phyllobothrium. In Russia, they are found in the basins of northern rivers and large reservoirs. Foci ... more

DIPHTERIA - an acute infectious disease with an airborne mechanism of transmission of the pathogen; characterized by fibrinous inflammation in the oropharynx, respiratory tract, less commonly in other organs, toxic damage ... more

LONG PRESSURE SYNDROME ( synonym : prolonged crushing syndrome, crash syndrome) develops as a result of prolonged pressing of the limbs (usually lower) with earth, heavy objects, fragments. It occurs in victims of ... more