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Excoriated papules with honey-colored crusting were present on the abdomen, back (Panel A), arms, and legs.
Excoriated papules ... Scabies #Microscopy #Rash ... #NEJM
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
Papulosquamous Skin Rash ... or violaceous papules ... (flat-topped) papules ... on wrists/ankles ... coloured scaling papules
Reactive Skin Rash - Differential Diagnosis Algorithm
Reactive erythematous with various morphology
 • Urticaria - Firm /
Reactive Skin Rash ... Firm / edematous papules ... with macules, papules
Crusted Scabies - Physical examination now revealed a generalized erythematous and scaly rash with intense hyperkeratotic
erythematous and scaly rash ... Scabies #Microscopy #NEJM
Oxygen Delivery Equation
DO2 = CO x {(1.39 x Hb x sO2) + (PaO2 x 0.03)}
DO2 =
deliver as many apples ... Apples = O₂ Total ... apples delivered ... forth delivering apples ... output (CO) The apples
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
can present with rash ... including heliotrope rash ... and Gottron's papules
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
Common Dermatological Conditions - Distribution and Morphology
 • Acne vulgaris - Face, upper back, chest -
, erythematous papules ... telangiectases, papules ... generalized) - Papules ... planus - Wrists, ankles ... #dermatology #rash
Causes of Petechial Rash - Differential Diagnosis Algorithm

Pinpoint areas (less than 2 mm) of hemorrhage, which
Causes of Petechial Rash ... : • Palpable Rash ... • Non-Palpable Rash ... : • Palpable Rash ... : - ITP - APLS