Differential Diagnosis > Morphology > Color > Red

Red

Top  Previous  Next
•aka "erythema"

 

not a useful group (unless broken down into smaller ddx's) because almost everything is red in dermatology

 

smaller ddx's:

hmtoggle_plus1acral erythema

acral erythema of chemotherapy

neutrophilic eccrine hidradenitis

GVHD

erythromelalgia

perniosis

toxin-mediated erythema

 

 

vs. "palmar erythema I have never found this to be a useful finding nor differential diagnosis"

•collagen vascular disease
•cirrhosis
•pregnancy

reticulate erythema

hmtoggle_plus1generalized erythema

must decide which ddx to apply:

•toxin-mediate erythema
•always consider drug

flushing

annular erythema

localized erythema