Skin lesions - different types of erythema

Question 1

name some different types of erythema?

Answer 1

Erythema nodosum Erythema marginatum Erythema migrans Erythema multiforme Erythema infectiosum Palmar erythema

Question 2

Which of the erythema is included in the Jone’s criteria for diagnosing rheumatic fever? an what does it look like?

Answer 2

Erythema marginatum Erythema marginatum has a clear margin with an inner central clearing

Question 3

What is included in the Jone’s criteria for rheumatic fever? (mnemonic is CANCER)

Answer 3

panCarditis polyArthritis subcutaneous Nodules sydenham Chorea - involuntary movememnts of muscles ERythema marginatum

Question 4

What is palmar erythema seen in?

Answer 4

Seen in liver cirrhosis

Question 5

Which eyrthema is seen in sarcoidosis? Which layer of the skin is affected here?

Answer 5

Erythema nodosum Painful red, rounded nodules just below the skin typically on the shins Affects the subcutaneous fat layer

Question 6

What is erythema migrans seen in? Describe the lesion seen?

Answer 6

Seen in lyme disease Get a bullseye-lesion

Question 7

What causes lyme disease?

Answer 7

A tick Borrelia burgdoferi

Question 8

What are two other names for eyrthema infectiosum? What virus causes it?

Answer 8

Also known as fifth’s disease or Slapped cheek Caused by parvovirus B19

Question 9

WHat is erythema multiforme caused by?What is the severe end of the rythema multiforme spectrum known as?

Answer 9

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%)

Question 10

How are the lesions in erythema multiforme described?

Answer 10

Target lesions - central blister

Question 11

What is this? What is it seen in?

Answer 11

This is palmar erythema Seen in liver cirrhosis

Question 12

What is this? What is it seen in?

Answer 12

This is erythema nodosum Typically seen in sarcoidosis - presents with painful red nodules beneath the skin surface typically on the shins

Question 13

What is this? What is it known as and what causes it?

Answer 13

This is erythema multiforme and is seen usually after an infection eg herpes infection or mycoplasma pneumoniae

Question 14

What is this? What causes it?

Answer 14

Slapped chee disease - erythema infectiosum Caused by parvovirus B19

Question 15

What is this and what causes it?

Answer 15

This is lymes diseases - the rash is known as erythema migrans and is caused by borrelia burgdoferi caused by ticks

Question 16

What is this and what causes it? What infection does it follow?

Answer 16

This is erythema marginatum seen in rheumatic fever post strep pyogenes infection

Question 17

Erythema nodosum Erythema marginatum Erythema migrans Erythema multiforme Erythema infectiosum Palmar erythema Name the cause of each

Answer 17

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)

Question 18

What skin condition can be seen post medication due to a reaction which causes widespread exfoliation?

Answer 18

Toxic epidermal necrolysis

Question 19

What is the treatment for lyme disease?

Answer 19

Amoxicillin or doxycycline