[PDF] 0 - Basic Principles of Dermatology - AWS

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Neoplastic

Dermatologic

disorders N o n -in fe c t io u s I n f l a m m a t o r y I n f e c t i o u s O t h e r

ViralBacterialFungal

ProtozoalMalignant

Autoimmune

bullous diseasesAutoimmune connective tissue diseasesPapulosquamous and eczematous dermatoses

Urticarias and

erythemasMetabolic and toxic insults/trauma

Genodermatoses

and developmental anomaliesCLASSIFICATION SCHEME FuOR DERMATOLOGIC DISORDEuRS

Benign

Non-palpable

FibrosisNests of

nevus cells

Epidermal

Palpable

Dermal

Soft or depressed

Dermal atrophy Lipo-

atrophy

MAJOR TYPES OF CUTdANEOUS ATROPHY

Epidermal

Subcutaneous (lipoatrdophy)Dermal

Lichen sclerosusStriaeLupus panniculitis

Pressure

LINEAR CONFIGURATImON PATTERNS

Linear configuratihon patterns

Trauma/exposure ("outmside job")

Excoriations due tho

scratchingAcute allergic conthact dermatitis to poisohn ivySporotrichoid patternm

Atypical mycobacterihal

infectionDermatomal

Herpes

zosterSegmental neurofibromatosis

Koebner phenomenon

Lichen planusAlong lines of Blasmchko

Epidermal nevusOther

Linea nigra Papular mucinosis

ವ ವ ವ ವ ವ ವ ವ Approach to the pastient with an acutse fever and a "rashs" *

Kawasaki

diseaseInfectious e.g. toxic shock syndromes; SSSS; scarlet fever; septic emboli (

Meningococcus,

Rickettsia

> other bacteria); secondarry syphilis; disseminarted erythema migransBacteria e.g. exanthems due rto enteroviruses, HHV-6r, adenovirus (see Fig. 81.2), HIrV; varicella, disseminated zosterr ** ;

Kaposi varicelliform

eruptionViruses Fungi ** e.g. disseminated dimorphic infection

Protozoa

** e.g. StrongyloidiasirsInflammatory

Morbilliform, serum

sickness-like reactrion,

DRESS, AGEP,

erythrodermaDrug reactions ***

Primary cutaneous

disorders (e.g. pustular psorirasis)

Rheumatologic

disorders (e.g. SLE, vasculitirs,

Still disease)Erythema multiforme,

SJS/TEN

Graft-versus-host

diseaseOther

Neoplastic

(e.g. lymphoma)Inherited (e.g. periodic fever syndromes) ****** not a single site ars in cellulitis, necrrotizing fasciitis more likely in immunorcompromised patient

early on, more seriousr drug reactions, e.gr. DRESS, may resemble ra morbilliform eruptiorn APPROACH TO THE PATsIENT WITH AN ACUTE sFEVER AND A "RASH"

DIFFERENT CUTANEOU

S BIOPSY TECHNIQUE

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