Hans Lennros wrote in message ...
>Gotcha! In the process of deciding its etiology you are practicing
>medicine.
Gotme what? Of course, you have to determine etiology. But this does not
make you a legal medical practitioner (i.e., the practice of medicine) under
the statutes of all states in the US. If the lymphadenitis isn't of a
dental/oral origin you refer to the appropriate medical specialist.