DERMATOLOGY 3 Flashcards
how to you differentiate form multifocal to symmetrical alopecia?
multifocal: usually inflammatory and non-symmetrical. well demarcated. skn=normal to infalmed
symmetrical: remaining coat is sclay? ADD MORE MISSED
what is important to remember when treating alopecia due to staph and malestesia
treat the underlying cause REGARIDNG DIAG??
what are 4 common cuaes of multifocal alopecia?
-infections
-ectoparasites
-keratinisation defects
-immune-mediates
what are 5 common causes of symmetrical alopecia?
-endocrinopathies
-metabolic
-congenital
-follicular dysplasia
-neoplastic
MORE ON GENERAL APPROACH CHARTS TO SYMMETRICAL AND MULTIFOCAL ALOPECIA
CHARTS ON DIFFERENTIAL DIAGNOSIS.
notice most of the conditions do not overlap between multicoal and symmetrical
demodex is a casue of which type of alopecia? [multifocal or symmetrical]
multifocal
demodex can be either juvenile or adult onset. which one should be treated?
adult
[juvenile usually self resolves]
staphylococcal skin infections are a cause fo which type of alopecia? [multifocal or symmetrical]
multifocal
what are signs of staphylococcal skin infections?
epidermal collarettes
papules n pustules
malassezia is a cause of which type of alopecia?
multifocal
dermatophytosis is a cause of which type of alopecia?
multifocal
is dermatophytosis contagious?
yes
leishmania is a cause of which type of alopecia?
multifocal
which multifocal cause of alopecia becomes atrophic and becomes relapsed w scar tissue?
dermatomyositis vasculitis
what is a rare type of alopecia that targets pigmented hairs?
alopecia areata
sebaceous adenitis
ADD MORE
post-clipping alopecia can often be due to clipping take palce at the beginning of the ____________phase of ahir growth
telogen,,,[will take some time before hair grows again]
epitheliotropic lymphoma
what are 6 pieces of info you can get form hair plucks?
wood lamps ->microscopic canis? low change of false positives?
fungal culure PCS highly specific
after wood lamp & pcs etc then think about biopsy?
between inflammatory and atrophic disease, which should be biopsied for early lesions?
late lesions?
inflammatory-early
atrophic-late
hyperadrenocorticism is which type of alopecia? [multifocal or symmetrical]
symmertical
what are other signs of hyperadrenocorticism?
calcinosis cutis!
PUPD, polyphagia
comedones
atrophic skin
sex hormone alopecia is which type of alopecia? [multifocal or symmetrical]
symmetrical
hypOthyroidism alopecia is which type of alopecia? [multifocal or symmetrical]
symmetrical
MORE ON HYPOTHYROIDISM
alopecia X alopecia is which type of alopecia? [multifocal or symmetrical]
symmetrical
TELOGEN EFFLUVIUM and anagen defluxion
anagen defluxion suusally in the anagen-dominated breeds [spoke abt in earlier elcture]
COLOR DILUTION ALOPECIA
FOLLICULAR DYSPLASIAS
what is the only symmetrical alopecia with well demarcated lesions?
cyclical flank alopecia
CONGENITAL ALOPECIA
PATTERN ALOPECIA
test to rule out/diagnose hyperadrenocorticism?
-ACTH stimulation test
-Low dose dexamethasone suppression test
-Urinary cortisol:creatinine ratio
-Ultrasound of the adrenal glands
test to rule out/diagnose hypothyroidism?
would it be low or high?
T4/ TSH
low T4, high TSH
remember confirmatory tests of hyperadrencort: ACTH stimulation test. is gone over in more detail later, but add flash carsd
