332 EXAMINATION OF BUCCAL AND PHARYNGEAL MATERIAL 



In the tropics, round worms may be vomited up and, lodging in the pharynx, 

 may have to be extracted. 



During the campaign of Napoleon in Egypt many cases of leech involvement of 

 the nasal and buccal cavities were noted. The parasite was the Limnatis nilotica 

 which gained access to the upper pharynx through drinking water from springs and 

 pools. Many such cases continue to be reported from the Mediterranean basin. 



