A text-book on diseases of the ear, nose and throat . away, leaving the nasal fossae abnormallyroomy, while at the same time an extensive epithelial metaplasia fromciliated to pavement ei)ithelium makes i:)0ssible the adhesion to the mu-cous surface of dried secretions in the form of crusts. In the majorityof cases these emit an offensive odor, producing a condition called nasal bones may be normal, but in many cases are shortened in alldirections, so that the nasal bridge sinks in, making the flat, pug, orsaddle nose often characteristic of the disease. The mucous surface mayremain
A text-book on diseases of the ear, nose and throat . away, leaving the nasal fossae abnormallyroomy, while at the same time an extensive epithelial metaplasia fromciliated to pavement ei)ithelium makes i:)0ssible the adhesion to the mu-cous surface of dried secretions in the form of crusts. In the majorityof cases these emit an offensive odor, producing a condition called nasal bones may be normal, but in many cases are shortened in alldirections, so that the nasal bridge sinks in, making the flat, pug, orsaddle nose often characteristic of the disease. The mucous surface mayremain comparatively intact, while the bone shows the greater septum also diminishes in size, growing shorter from before back-ward, as the investigations of Hopmann have shown. If the crusts be lifted off, their under surfaces are found moist or cov- HYPERTROPHIC AND ATROPHIC RHINITIS. 323 ered with fluid piis. The offensive odor of ozsena clings to these crusts,and usually disappears with their removal. The crusts may be discrete or Fig. 11. Right nasal fossa. Atrophy of mucous membrane and turbinated bones. (Zuckerkandl.) 3/, middleturbinal; U, lower turbinal; T. Eustachian tube. line the entire nasal cavity like a cast. The mucous membrane is pale,neither eroded nor ulcerated, and in advanced cases is firmly attached tothe bony surface like a thin serous membrane. Extreme atroi^hy of theturbinals makes x)ossible direct inspection of the nasopharynx and Eu- FiG. 118.
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