DISEASES OF THE TEETH 45 



ing in this region intense localized inflammations and great oedema from 

 traumatisms, such as fights, blows or contusions. The swelling may 

 extend to the head and neck (Fig. 24). The treatment in such cases 

 consists in making a free opening to allow the pus to escape and heal it 



Fig. 24. — Abscess of the neck. CEdema of the right side of the head. 



as an open wound or dress it with an antiseptic held in place by means 

 of a Priessnitz compress. 



Occasionally we find cysts form in the glands of the tongue. These 

 were first described by Siedamgrotsky as honey cysts. They are seen 

 on the lower side of the mouth in the region of the larynx, and are covered by 

 the muscles of the neck; or they may be on both sides of the larynx and 



Fig. 25. — Mucous cyst. 



appear as a conglomeration of small, crowded vesicles with thin, coarse 

 walls filled with a thick, honey-like fluid (see Fig. 25). In some instances 

 it is very thick, like cheese, and yellow or reddish. They originate in 

 the glands of the tongue, and as the cyst walls extend into the tissue of 

 that organ they must be classed under the head of ranula. 



