Inflammation of lymph nodes is called lymphadenitis.  Infectious lymphadenitides affecting cervical lymph nodes are often called scrofula. Lymphadenopathy refers to lymph nodes which are abnormal in size, number or consistency and is often used as a synonym for swollen or enlarged lymph nodes.In practice, the distinction between lymphadenopathy and lymphadenitis is rarely made. Common causes of lymphadenopathy are infection, autoimmune ... Read More »


Shock clipart

Shock is defined as “the state in which profound and widespread reduction of effective tissue perfusion leads first to reversible, and then, if prolonged, to irreversible cellular injury.” Acute circulatory failure, shock, low cardiac output states are various terms used to describe a clinical syndrome of hypotension, peripheral vasoconstriction, oliguria and often impaired consciousness. One of the key dangers of shock is ... Read More »

Pyrexia Of Unknown Origin

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What is Pyrexia of Unknown origin? Petersdorf and Beeson in 1961 defined Pyrexia of Unknow origin ( Fever of Unknown Origin) as temperatures of >38.3°C (>101°F) on several occasions a duration of fever of >3 weeks failure to reach a diagnosis despite 1 week of inpatient investigation. The commonest cause of Pyrexia of Unknown Origin is Common disease presenting ATYPICALLY ... Read More »

Fever (Pyrexia)

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What is Fever(Pyrexia) ?? The maximum normal oral temperature is 37.2C (98.9F) at 6 A.M. and 37.7C (99.9F) at 4 P.M. An A.M. temperature of >37.2C (98.9F ) or a P.M. temperature of >37.7C (99.9F) define a fever (also known as Pyrexia). The normal daily temperature variation is typically 0.5C (0.9F) Pyrexia might be created by numerous diverse viral or ... Read More »


cough clipart

What is Cough It is the reflex or voluntary expulsion of the inspired air by forced expiratory effort against a transitorily closed glottis. Cough is known to be one of the unique defensive reflex of human body designed to clear the tracheobronchial tree of secretion and foreign body. Though previously recognised as the ‘watch-dog’ (i.e. protective reflex) of the respiratory ... Read More »

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