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Algorithm for Diagnosis of the Vesiculobullous Rash

Febrile, Diffuse Distribution:
 - Varicella,  Smallpox,  Disseminated, Gonococcal,
Vesiculobullous Rash ... DIC Febrile Localised ... Afebrile, Localised ... Vesiculobullous #Vesicular #Rash
Vesiculobullous Rashes - THE ALGORITHMIC APPROACH 
Vesiculobullous rashes provoke significant angst
in many physicians (Figure 5, page
noting whether the rash ... is diffuse or localized ... vesiculobullous rash ... disease present with localized ... afebrile with a localized
Skin Hypopigmentation - Differential Diagnosis Algorithm

Diffuse Congenital - Generalized hypopigmentation of hair, eyes, skin
 • Phenylketonuria
• Vitiligo Localized ... sclerosis (white "ash ... leaf" macules) Localized
Evaluation of Lymphadenopathy - Localized vs Generalized #Diagnosis #EM #IM #Honc #Lymphadenopathy #Localized #Generalized #Infectious #Malignancy
Lymphadenopathy - Localized ... Lymphadenopathy #Localized
Disorders of Pigmentations - Hypopigmentation and Hyperpigmentation - Differential Diagnosis Algorithm

HYPOPIGMENTATION
Diffuse Congenital - Generalized hypopigmentation of
• Vitiligo Localized ... sclerosis (white "ash ... leaf" macules) Localized
Excoriated papules with honey-colored crusting were present on the abdomen, back (Panel A), arms, and legs.
Scabies #Microscopy #Rash ... #NEJM
Crusted Scabies - Physical examination now revealed a generalized erythematous and scaly rash with intense hyperkeratotic
erythematous and scaly rash ... Scabies #Microscopy #NEJM
Strongyloides stercoralis Hyperinfection - Physical examination revealed reticulated purpuric patches with dusky centers on the abdomen,
biopsy of the rash ... InfectiousDisease #Rash ... FilariformLarvae #Microscopy #NEJM
Herpes Zoster Mandibularis - The lesions were scattered along the area that is innervated by the
#Mandibularis #Rash ... #NEJM #Shingles
Causes of Diffuse and Localized Lymphadenopathy - Differential Diagnosis Algorithm
 • Reactive (Inflammatory / Infectious)
 •
of Diffuse and Localized ... Diffuse #Focal #Localized