Difference between revisions of "General approach to rashes"

(Differential Diagnosis)
m (Rossdonaldson1 moved page Generalized rashes to General approach to rashes)
(No difference)

Revision as of 17:18, 23 July 2016

Background

Dermatology Nomenclature

Small lesions (<0.5cm)

Name Raised/Palpable Fluid-Filled Other Description Diagram
Macule No None flat, cirumscribed, colored Macule.png
Papule Yes None Solid Papule.png
Vesicle Yes Clear Vesicles (2).png
Pustule Yes Pus Leukocytes or keratin Pustules.png

Large lesions (>0.5cm)

Name Raised/Palpable Fluid-Filled Other Description Diagram
Patch No None Large macule (flat, colored) Patch.png
Plaque Yes None Superficially raised, circumscribed solid area Plaque.png
Nodule Yes None Distinct large papule Nodules.png.png
Bulla Yes Clear Large vesicle/blister or exposed epidermal layer Bulla.png
Wheal Yes Edema Firm and edema of dermis

Other

Ulcer, fissue, and erosion
  • Plaque/scaley papule
  • Eschar
  • Fissure/erosion/ulcer
  • Purpura/petechia
  • Plaque/smooth papule

Differential Diagnosis

Rash

Vesiculobullous rashes

Febrile

Afebrile

Necrotizing rashes

Petechiae/Purpura (by cause)

Visual diagnosis

Rash visual diagnosis

Vesiculobullous rashes visual diagnosis

See Also