You've seen rashes and called them all "maculopapular," because, why not?
Does describing something accurately really make a difference?
9 words to improve your life... when calling a derm consult.
Macules are flat lesions, less than 1 cm in diameter.
If you closed your eyes and ran your finger over it, you wouldn't feel where it starts and stops.
👀Idiopathic guttate hypomelanosis
Papules are raised (or depressed) lesions, less than 1 cm in diameter.
Unlike macules, if you closed your eyes and ran your finger over it, you'd be able to tell where the lesion is.
👀Compound nevi
Patches are big macules (> 1 cm)
👀Vitiligo
Plaques are big papules (> 1 cm)
👀Psoriasis
Nodules are deeper seated lesions, think at least 1 cm deep. It's hard to measure though because part of it is under the skin surface.
👀Rheumatoid nodule
Tumors are even bigger. People disagree, but 2 cm is a reasonable cut off.
👀Cutaneous T-cell Lymphoma
Vesicles are fluid filled blisters that are <1 cm.
👀Herpes Zoster (Shingles)
Bullae are bigger blisters, >1 cm!
👀Bullous Pemphigoid
Pustules are anything filled with pus.
Remember the adjective for them is "purulent," not the other word you're thinking of.
👀Folliculitis
This has been a parody #tweetorial on #morphology!
Remember, these are primary lesions, and there's so much more you can say about the rash! Check out my original series by searching for #derm101.
#dermtwitter #medtwitter #meded #FOAMEd
📸: @visualdx
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