The next component of this presentation
will deal with non-neoplastic
highlighted by lichen planus.
We will segue through
other inflammatory conditions
which are immune-mediated
and terminate with precancer and cancer,
highlighted by the initial erythroplasia,
a highly worrisome problem that leads to,
in most cases, squamous cancer
or severe precancerous changes.
So we will begin with discussing
lichen planus and its various forms.
This can be a serious chronic problem
involving the oral cavity alone
or can involve the skin and other sites,
including those of the areas of the scalp,
flexor surface of the forearms,
the pretibial region of the legs,
scalp involvement, nail involvement,
So this is not necessarily
an oral disease only by any means.
Several facts about lichen planus,
up to 1% of the population is affected.
And those numbers will vary depending upon
the literature sources you choose to quote.
As evidenced in my practice, most of my
lichen planus patients tend to be women,
half or more of cutaneous lichen planus
can accompany oral lichen planus in women.
Average age of onset of oral lichen planus
tends to be middle-aged years.
The duration of the problem
before attention is drawn to it
can vary from weeks to months
to years, in fact,
and there are variable clinical presentations
which we will demonstrate.