Having done that, let's do a
quick review questions.
I'm going to ask 2 questions. I'll
pause after the question, and
you can pause the screen and try and
come up with the answer yourself
before I explain it.
So, question number 1.
All of the following are commonly associated
with erythema nodosum except?
The answer to this one is going to be
scleroderma. All the other ones are very
commonly associated with E. nodosum.
Question 2. Which of the following is
true of erythema nodosum?
Well, we've talked before, a
biopsy would not show
a small to medium vasculitis. That would
be for polyarteritis nodosum.
A biopsy would show panniculitis.
does represent a delayed type hypersensitivity
reaction to various stimuli,
so that is going to be our answer.
But just to wrap up the other
3 things on the list there,
it most commonly involves the anterior
or pretibial region of the legs.
It tends to resolve spontaneously,
rather than just
persisting indefinitely, if left
it is not typically associated with
myalgias. That's it.