116 DENTAL CYSTS. 



seppe General!, of the Veterinary School of that city, 

 published a most complete and interesting contribu- 

 tion to our knowledge of the pathology of dental cysts 

 in the horse, well illustrated with wood-cuts, and in- 

 cluding a full bibliographical record and synoptical 

 table of these morbid productions. From their re- 

 searches it would appear that dental cysts were first 

 described by Mage Grouille, in 1811.* 



" These teeth-bearing tumors have received different 

 names. Thus they have been designated 'erratic' or 

 ' misplaced teeth,' f dental neoplasies,' 'odontocysts,' 

 ' dental degeneration of the temporal bone,' ( temporal 

 fistula,' ' abnormal development of teeth in unusual 

 places,' ' auricular teeth,' 'odontocele,' and 'dentiger- 

 ous cysts' or 'teeth-tumors.' They may be developed 

 in unusual places, such as the temporal region, the 

 frontal bones, the base of the ear, the space between 

 the branches of the lower jaw, the lumbar region, the 

 testicles, and the ovaries. Coleman stands alone in his 

 case of a cyst found beneath the right kidney, in which 

 were two small molars and an incisor, attached to a 

 bone that resembled a jaw, though the Milan profes- 

 sors believe the teeth in this instance may have been 

 developed in a testicle retained in the abdominal cav- 

 ity. The most common situation is undoubtedly in 

 the temporal region, as in seventy-five recorded cases 

 sixty-eight were observed there. These cases all refer 

 to the horse. Berger-Perriere, however, found a tem- 

 porary incisor in a fistulous wound near the right ear 



* "No mention is made of the Aldor/evofisvoi kv ro?f yvddoic, or 

 maxillary exostoses of Apsyrtus (' Hipp. Gr.' p. 64), who recom- 

 mends that these tumors should be carefully and completely 

 removed, or they will return of a larger size." 



The reference note is also Surgeon Fleming's. 



