Lichenoid disorders Flashcards
1
Q
what is the pathogenesis of lichenoid disorders
A
disruption to the basal membrane and eruption of flat papules
2
Q
what is lichen planus
A
infiltration occurs between the epidermis and dermis attacking the basal layer
3
Q
symptoms of lichen planus
A
intensely itchy flat topped violaceous shiny purple papules Wickhams striae (found on mucosal surfaces)
4
Q
features of lichen planus you would see under the microscope
A
irregular sawtooth acanthosis hypergranulosis upper dermal infiltration of lymphocytes basal damage with cytoid bodies hyperkeratosis
5
Q
what are wickhams striae
A
fine lace like network on buccal mucosa
6
Q
where can you get lichen planus
A
volar wrists / forearms
shins and ankles
7
Q
what drugs can cause a lichenoid drug eruption
A
ACEI
statins
8
Q
Management of lichen planus
A
topical steroids
PO steroids
phototherapy
