Skin lesions - different types of erythema Flashcards
name some different types of erythema?
Erythema nodosum Erythema marginatum Erythema migrans Erythema multiforme Erythema infectiosum Palmar erythema
Which of the erythema is included in the Jone’s criteria for diagnosing rheumatic fever? an what does it look like?
Erythema marginatum Erythema marginatum has a clear margin with an inner central clearing
What is included in the Jone’s criteria for rheumatic fever? (mnemonic is CANCER)
panCarditis polyArthritis subcutaneous Nodules sydenham Chorea - involuntary movememnts of muscles ERythema marginatum
What is palmar erythema seen in?
Seen in liver cirrhosis
Which eyrthema is seen in sarcoidosis? Which layer of the skin is affected here?
Erythema nodosum Painful red, rounded nodules just below the skin typically on the shins Affects the subcutaneous fat layer
What is erythema migrans seen in? Describe the lesion seen?
Seen in lyme disease Get a bullseye-lesion
What causes lyme disease?
A tick Borrelia burgdoferi
What are two other names for eyrthema infectiosum? What virus causes it?
Also known as fifth’s disease or Slapped cheek Caused by parvovirus B19
WHat is erythema multiforme caused by?What is the severe end of the rythema multiforme spectrum known as?
Erythema multiforme Can be caused by infection herpes simplex or mycoplasma pneumonia Can be caused by medication eg sulfonamides Severe end of spectrum causes Steven Johnson syndrome ( 30%)
How are the lesions in erythema multiforme described?
Target lesions - central blister
What is this? What is it seen in?
This is palmar erythema Seen in liver cirrhosis
What is this? What is it seen in?
This is erythema nodosum Typically seen in sarcoidosis - presents with painful red nodules beneath the skin surface typically on the shins
What is this? What is it known as and what causes it?
This is erythema multiforme and is seen usually after an infection eg herpes infection or mycoplasma pneumoniae
What is this? What causes it?
Slapped chee disease - erythema infectiosum Caused by parvovirus B19
What is this and what causes it?
This is lymes diseases - the rash is known as erythema migrans and is caused by borrelia burgdoferi caused by ticks
What is this and what causes it? What infection does it follow?
This is erythema marginatum seen in rheumatic fever post strep pyogenes infection
Erythema nodosum Erythema marginatum Erythema migrans Erythema multiforme Erythema infectiosum Palmar erythema Name the cause of each
Erythema nodosum - sarcoidosis Erythema marginatum - rheumatic fever post strep Erythema migrans - seen in lyme disease Erythema multiforme - seen post infection (herpes or mycoplasma pneumoniae) Erythema infectiosum - also known as slapped cheek disease, parvovirus B19 Palmar erythema - seen in liver cirrhosis (and kawasaki’s)
What skin condition can be seen post medication due to a reaction which causes widespread exfoliation?
Toxic epidermal necrolysis
What is the treatment for lyme disease?
Amoxicillin or doxycycline
