SURGICAL COMPLICATIONS AND SEQUELS OF FEVERS. 23 



caseous degeneration. The articulations of the cartilages are 

 also often destroyed, especially those of the cricoid, with the 

 arj'tenoid or with the thyroid ; and thus again voice is impaired. 

 The function of the muscles, especiall^^ those which open the 

 glottis, is impaired or destroyed, from direct implication of the 

 muscles or from destruction of their cartilaginous attachments, 



Fig. 4. 



\\\, '^i 



Perichondritis laryngea following typhoid ; abscess opened from oesophagus and 

 seen frora behind, a, b, necrosed and partly destroyed cricoid cartilage ; between 

 a and b the dark spot indicates the point where the abscess communicated with 

 the trachea; it did not communicate with the oesophagus; c, crico-aryten. post. 

 muscle. Tiirck, Krankh. des Kehlkopfes, p. 218, fig. 80. 



or of the articulation ; and thus the vocal chord of that side is 

 immobilized, and altered voice and stenosis of the larynx follow. 

 If an abscess form about the cricoid, it may not only burst into 



