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Directory of Diseases (letter O)


Baldness - see Alopecia

Fainting (sync: syncope) - a sudden loss of consciousness of a non-epileptic nature due to a diffuse decrease in brain metabolism caused by a short-term decrease in cerebral blood flow. Fainting in one way or another ... more

Odontogenic cyst - see Tooth cyst

BREATHING - violation of the frequency, rhythm or depth of breath, accompanied, as a rule, by a feeling of lack of air. It may be associated with a violation in any part of the act of breathing in which the cortex is involved ... more

OBESITY - a pathological condition characterized by an increase in body weight due to excessive deposition of fat in the body. Depending on the excess body weight in relation to the so-called ideal mass, there are ... more

BURNS - tissue damage that occurs under the influence of high temperature, acids, alkalis or ionizing radiation. Depending on the etiological factor, there are thermal, chemical burns, electric burns ... more

IDENTIFICATION - skin lesions caused by prolonged cooling. It arises with constant, albeit mild cooling (working outdoors in cold damp weather or in damp rooms, wearing tight insulated shoes and ... more

OLIGOPHRENIA is a group of diseases of various etiologies and pathogenesis, the main manifestation of which is dementia congenital or acquired in the first 3 years of life and difficulty in social adaptation. The reason ... more

REJUVENATION - a limited thickening of the stratum corneum of the skin, which develops at the site of repeated mechanical irritations (pressure, friction), contributing to local circulatory disturbance and increased keratinization .... more

OMS HEMORRHAGIC FEVER - an infectious disease from the group of hemorrhagic fevers; characterized by moderate hemorrhagic syndrome, fever, damage to the cardiovascular and nervous system. Natural foci ... more

OPISTOTONUS - a convulsive posture with a sharp arching of the back, throwing the head back with support only on the back of the head and heels, stretching the legs, bending the arms, hands, feet and fingers due to tonic muscle contraction ... more

SHOULDER - see Herpes zoster

TUMORS (syn.: Neoplasms, blastomas) - pathological tissue growths, consisting of qualitatively changed cells that become atypical in relation to differentiation, growth pattern and others ... more

ORNITOSIS (syn: psittacosis) is an infectious disease characterized by intoxication, lung damage, and a tendency to a protracted course with exacerbations. The causative agent of ornithosis refers to chlamydia. It is stable ... more

ORCHIT - inflammation of the testicle. More common in mumps, flu, tuberculosis. Tuberculous orchitis usually develops as a result of the spread of the inflammatory process from the epididymis to the testis .... more

ACUTE RESPIRATORY VIRAL INFECTIONS (ARVI) - a group of acute human infectious diseases transmitted by airborne droplets and characterized by primary damage to the respiratory system. SARS are the most common infectious ... more

ACUTE ABDOMEN - a clinical syndrome that develops with injuries and acute diseases of the abdominal cavity and retroperitoneal space and requiring emergency surgical care. For an acute abdomen are typical ... more

QUINKE Edema ( synonym : angioedema, giant urticaria) is an acute, suddenly developed, limited swelling of the skin and subcutaneous tissue and / or mucous membranes. More common in women; in children and individuals ... more

CEREBRAL Edema. In case of damage to the substance (cells) of the brain of any etiology (trauma, intoxication, ischemia, etc.), during the first hours, the filtration of the liquid part of the plasma into the intercellular space of the brain increases .... more

OTITIS - inflammation of the ear. There are external, middle and internal otitis media. Otitis externa. There are limited external otitis media (boils of the external auditory canal) and diffuse (diffuse) external otitis media ... more

FREEZE - tissue damage caused by exposure to low temperatures. The factors contributing to frostbite include increased humidity, strong winds, tight shoes and clothes, intoxication, ... more

Belching - sudden involuntary release of gas into the oral cavity from the stomach or esophagus, sometimes with small portions of the contents of the stomach. Normally, there is always a gas in the stomach that stimulates its motor and ... more

RETAIN EXTRACTION OF THE EYE - an illness in which the connection between the retina and pigment epithelium is disrupted. It is observed more often with pathology of the retina and vitreous body, with high myopia. Due to the physical ... more

ORGANISM COOLING - a condition of the body caused by exposure to cold, and characterized by general and local reactions. Under the conditions of predominance of heat transfer over heat products, cooling leads to a decrease in body temperature, ... more