1923- No. 16. THE XEL'ROLOGICAL ASPECT OF LEPROSY 



23 



In view of the small numbers, the percentage herç given has no great 

 value; for the last group the percentage is probably much too high. But 

 the above shows at least that the facial paresis is a fairly common occur- 

 rence in all forms of leprosy. 



The electrical examination of the facial nerve, as a rule, wil not so 

 readily show characteristic changes as in the ordinary peripheral facial palsy 

 (Bell's palsy), where the seat of the lesion is in the facial nerve trunk- 



cv&^^- 



Fig. 6. (Case No. 9. M. Ü. Aa.l The patient Fig. 7. (Case No. 44. A. A.I The patient is 



is smiling. On the right side the nasolabial trying to show her teeth. In this case both 



fold is absent; on this side a peculiar set of cilia and supercilia were extremely well 

 wrinkles are found, probably due to contrac- preser\-ed. 



tion of the buccinator. 



A typical reaction of degeneration as seen in Bell's pais}- is, in fact, a rare 

 thing. And yei the result of a painstaking electrical examination may in a 

 great many cases present characteristic features. The individual muscles react 

 as a rule verv differently to the stimuli ; some may react fairly normally 

 both to the farradic and galvanic current, others may show the reaction 

 of degeneration (complete or incomplete I, others again do not react at all. 

 Thus in case No. 30 (O. A.I (cpr. also fig. 5 1, while the right zygomatic 

 muscle showed apparently normal reaction, the left zygomatic muscle did 



