"Only one other similar case has been reported in the English-language literature." As I said extremely rare... Most of the time impossible... What ppl might think is a pinworm is Ascaris larvae... And chances are it's most likely them if you do a risk assessment... I have them in my head/face region... Feel like pinworms but it's not the case... I won't even worry about them to be honest as albendazole should wipe them out fast for good. But if something survives... It's not pinworms...