Miscellaneous factors :Initially, all cases were thought
associated with seborrheic dermatitis.Problems may be more common
in those using the most cosmetics.Emotional stress.
History of facial eruption affecting the perioral area.The
eruption start unilaterally in the nasolabial fold area.Clinical
Manifestations
Extending to involve the chin & upper lip.The classic
distribution is of the perioral area but the glabella, eyelids
& even forehead may be affected.
The clinical features are :Erythema usually persistent.Papulosis
irregularly grouped, firm, pinhead size erythematous.Scaling
usually fine.
DERMATITIS PERIORAL
Histologic finding completely different from rosacea :A Mild
perivasculer or perifollicular lympho-hystiocytic
infiltrate.PathologyTwo fairly large series have been published
:
Mild eczematous change & follicular spongiosis.Presence of
eczema & absence of edema, connective tissue disruption &
granuloma.
