A text-book on diseases of the ear, nose and throat . ARYNX. These may be of the simple exudative variety, coming on alone or asa complication of many systemic states and general fevers. In addition,there are the acute conditions due to specific causes, such as syphilis andtubercle, and those attended by membranous formation, such as diph-theria, true and false. Acute Cataerhal Laryngitis.—This is an exudative inflamma-tion of the mucous lining of the larynx, the peculiarities of which in thissituation are due to anatomical conditions. Etiology.—Modern views incline to the belief that acute ca
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A text-book on diseases of the ear, nose and throat . ARYNX. These may be of the simple exudative variety, coming on alone or asa complication of many systemic states and general fevers. In addition, there are the acute conditions due to specific causes, such as syphilis andtubercle, and those attended by membranous formation, such as diph-theria, true and false. Acute Cataerhal Laryngitis.—This is an exudative inflamma-tion of the mucous lining of the larynx, the peculiarities of which in thissituation are due to anatomical conditions. Etiology.—Modern views incline to the belief that acute catarrhallaryngitis is in the majority of cases the result of the lighting up intoan acute stage of a chronic catarrhal process either in the larynx itself or in the adjacent tissues. All those whoseoccux3ations subject them to much dusthave their upper air-passages in a state ofconstant irritation and hypersemia, which, under the exciting influence of fatigue, ex-IDOsure to cold and damp, etc., readily takeson an acute condition. Inhalation of to-. Acute laryngitis. (Krieg.) bacco-smoke in a confined space, of irri-tating odors and fumes of all sorts, abuseof alcohol, and excessive vocal effort are allliable to be followed by acute inflammation.Several drugs are capable of setting up thedisease, especially potassium iodide, andBethi^ has reported a case due to arsenic.It occurs at all ages, and is more common in men, doubtless from the factthat they are more exposed to irritants. In children a cold in the headis apt to travel downward, while in older people the brunt of the attackseems to fall first of all on the larynx, while the parts above becomesecondarily affected. Pathology.—In a case of ordinary severity the submucous tissue is notaffected. There is the usual sequence of vascular contraction, quicklyfollowed by dilatation and arrest of secretion. The dry stage is apt tolast longer here than in other mucous membranes 5 it is succeeded by theexudation of serum in small