. A practical treatise on medical diagnosis for students and physicians . ogical significance is theoccurrence of asthma, or sudden dyspnoea, from reflex excitation of thepulmonary division of the pneumogastric nerve. Morbid Processes. The morbid processes are congestions; inflamma-tions, which may be infectious, or toxic as from vapors ; infections, eitherprimary or symptomatic of some general disease; and morbid inflammations are significant of the exanthematous diseases, par-ticularly measles. As Meigs has pointed out, an acute inflammation withgreat obstruction of the nares a
. A practical treatise on medical diagnosis for students and physicians . ogical significance is theoccurrence of asthma, or sudden dyspnoea, from reflex excitation of thepulmonary division of the pneumogastric nerve. Morbid Processes. The morbid processes are congestions; inflamma-tions, which may be infectious, or toxic as from vapors ; infections, eitherprimary or symptomatic of some general disease; and morbid inflammations are significant of the exanthematous diseases, par-ticularly measles. As Meigs has pointed out, an acute inflammation withgreat obstruction of the nares and an abundant, puriform discharge, is acomplication or symptom of Brights disease which may portend the onsetof ursemia. Chronic inflammations may be due to syphilis or otherchronic infection. Diagnosis. The facts obtained by the historical diagnosis give butlittle information in the differential diagnosis of nasal diseases, except forthe lesions which simulate one another but which have a different only in this manner can we recognize syphilitic Vertical section through nasal cavities. (Diagrammatic.) (Seiler.) 1. Superior turbinated bone. 2. Middle turbinated bone, with posterior hypertrophy. 3. Section of hypertrophied pharyngeal tonsil. 4. Inferior turbinated bone. 5. Orifice of Eustachian tube. The subjective diagnosis demands a study of the symptoms of pain,cough, and disturbance of the sense of smell. The first two have beenconsidered in the chapters devoted to these symptoms. Disturbance of the Sense of Smell. (See the Nerves.) Loss of smell,or anosmia, occurs to a moderate degree in all the inflammatory and ob-structive diseases of the nose. The intensity depends upon the degree ofchange in the mucous membrane. It may also be due to disease of the 860 DISEASES OF THE NOSE AND LARYNX. nerves or the olfactory centre in the brain. Parosmia is the perceptionof abnormal odors, and may be a neurosis or solely a psychical difficultyand hence purely sub
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