Different kinds of foreign bodies are not in frequently found in the nares. They may be introduced into the nostrils accidentally or designedly by children. These may become coated with lime salts so as to form nasal calculi or Rhinoliths, which may also form without the presence of a true foreign body, the lime being deposited in inspissated secretions. Occasionally, maggots find their way into the nares, and sometimes fungi (Aspergillus fumigatus) occur. Most foreign bodies irritate the mucous membrane, producing chronic catarrh, frequently accompanied by very putrid discharges (Ozaena).

Literature

Cohen, Dis. of throat and nasal passages, 1879; Morell Mackenzie, Manual of dis. of throat and nose, ii., 1884; Michel, Krank. d. Nasenhohle, 1876; Zuckerkandl, Norm. u. path. Anat. der Nasenhflhle, 1882; Seifert and Kahn, Atlas d. Histopath. d. Nase, 1895; Bresgen, Chron. Nasen- und Kachen-katarrh, 1883; Dmochowski, (Tuberculosis) Ziegler's Beitrage, 1894, B. xvi., s. 109; Gerber, (Syphilis) Die Syphilis der Nares und des Halses, 1895; Kelly, (Cysts) Journ. of Laryng., 1898.