Download - morphology of the skin
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Morphology and Differential
Diagnosis
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Welcome to Dermatology!
No matter what area of medicine or surgery
you pursue, you will get skin related
questions from family, friends, and
patients.
The time frame is short, so make the best
use of your time. arry your book with
you at all times and try to make it throughall the photos.
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uggestions for a uccessful
"otation
# $e on Time!
# $e attenti%e and helpful.
# Do not ask questions or make commentsduring the patient encounter. &lease ask
all questions outside the e'am room.
# &lease do not talk loudly in the hallway.
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Macule
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Macule
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Macule
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&atch
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&apule
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&apules
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&apules
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&apules
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&laque
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&laque
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&laque
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Nodule
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Nodule
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Nodule
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Tumor
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Tumor
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Tumor
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&ustule
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&ustule
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(esicle
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(esicle
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(esicle
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$ulla
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$ulla
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Wheals
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Wheals
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pecial kin )esions
# $urrow* Thin linear papule or plaque
# omedone* +ollicular papule filled with
keratinous plug which is open or closed
# yst* &apule or nodule filled with debris
# Telangiectasia* Dilated blood %essel less
than mm wide
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$urrow
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omedone
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Telangiectasia
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yst
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econdary )esions
# cale
# rust
# -rosions and ulcers
# -'coriations
# +issures
# cars
# )ichenification
# trophy
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cales
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cales
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cales
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rust
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rust
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-'coriations
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-rosion
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-rosion
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/lcer
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/lcer
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/lcer
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+issure
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+issure
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trophy
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trophy
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trophy
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trophy
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car
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)ichenification
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onfiguration
# nnular
# rcuate
# 0eographic
# Discrete
# onfluent
# erpiginous
# )inear
# "eticulated
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nnular and arcuate
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)inear
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-rythema ubitum
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Descriptors
# &unctate
# )ichenoid
# /mbilicated
# carletiniform, morbiliform
# )eonine
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olor
# &ink
# (iolet
# 1range
# $lue
# 0reen
# 2ellow
# $lack
# $rown
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olor
# &ink3&ityriasis rosea
# (iolet3)ichen planus
# 1range34u%enile 'anthogranuloma
# $lue3mioderone skin pigmentation
# 0reen3&seudomonas
# 2ellow35anthomas
# $lack3eschar
# $rown3af6 au lait spots
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olor
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Distribution
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Morphologic categories
# Macular7&atch
# &apular
# &apulosquamous
8scaly papules9# Nodular
# &ustular
# (esicular7bullous
# /rticarial
# &etechial
# Telangiectatis
# $urrow
# &oikiloderma
# :yperkeratotic;scale
# trophic
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“More is missed by not looking
than by not knowing” M. Mc
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&rocedures
# )iquid Nitrogen
# -lectrodessication and curettage
# $iopsy
= &unch
= ha%e
= -'cision
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eborrheic ncrease incidence with
age
# -asily treated with
curettage or
cryodestruction
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Dermatosis &apulosa Nigra
# Most likely a subtypeof seborrheic
keratosis
# Malar areas, mostcommonly on frican7
merican women
d 8ki T 9
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crocordons 8kin Tags9
# ommon, occurring inabout ?@A of adults
# More common in obeseindi%iduals and oftende%elop in pregnancy
# +rictional areas such asneck, a'illae,inframammary and groinlocations
# an become irritated or
infarcted because oftorsion
D t fib
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Dermatofibroma
# +irm papule often withbrown pigmentation, mostfrequently seen on theanterior legs
# BDimpleC sign# May be a reacti%e
process to an insect bitereaction rather than atumor
# >f multiple, sometimesassociated with systemiclupus erythematosis
D t fib
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Dermatofibroma
< l id
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- id id t
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-pidermoid yst
T i hil l 8&il 9 t
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Trichilemmal 8&ilar9 yst
ti i < t i
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ctinic
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herry ngiomas
# $enign %ascular proliferation
# Bsenile hemangiomaC = donFt use this term
with patients
# /sually appear on trunk, start at age GE,
increase with age
# Dilated capillaries
# T' for cosmetic reasons only
http://162.129.70.33/images/cherryangioma_1_020330.jpg
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http://162.129.70.33/images/cherryangioma_1_020330.jpg