Dermatology Gallery

Question 1

refer to attached image

Answer 1

• slapped cheek disease, fifth disease, erythema infectiosum
• parvovirus B19
• History: mild febrile illness with rash
  
  • Prodrome: fever, headache, nausea
  • 2-5 days later: classic erythematous malar rush with relative circumoral pallor. Rash recrudescence after stimuli (e.g. change in temp)
  • Facial rash followed by reticulated or lacelike rask on trunk and extremities
  • +/- arthralgia (joint pain without symptoms of inflammation)
• Symptoms self-resolve within a few weeks but can persist for months to years in some patients

Question 2

what is this?

Answer 2

cavernous hemangioma

Question 3

what is this?

Answer 3

cellulitis

Question 4

what is this?

Answer 4

erythema multiforme

Question 5

what is this?

Answer 5

folliculitis

Question 6

what is this?

Answer 6

furuncle

Question 7

what is this?

Answer 7

herpes simplex (HSV-1)

Question 8

what is this?

Answer 8

molluscum contagiosum

Question 9

Answer 9

pityriasis rosea (with the herald patch and maculopapular pink rash)

Question 10

Answer 10

pityriasis versicolor

Question 11

Answer 11

scabies (shows burrows on the skin)

Question 12

Answer 12

shingles vesicular, maculopapular rash in a dermatomal dsitribution

Question 13

Answer 13

tinea cruris

Question 14

Answer 14

urticaria

Question 15

Answer 15

warts (HPV)

Question 16

Answer 16

nappy rash - suberrhoiec dermatiits

Question 17

Answer 17

petechial rash - suspect meningoccoceal septicemia

Question 18

young patient, has simialar lesion on the mucosal surface of the mouth

Answer 18

hand foot mouth disesae, coksackie B virus

Question 19

patient presented after a new drug prescription

Answer 19

Steven Johnson Syndrome - erythema multiforme with the involvement of the mucosal membrane

Question 20

vesicular looking rashes on a child

Answer 20

chicken pox (herpes zoster)

Question 21

found on a middle aged person that is non blanching

Answer 21

campbell de morgan spot or cherry angiomas (benign lesions)

most common angioma found in middle aged - older aged person

can grow from macular to papular shape

non blanching

Question 22

found on a child

Answer 22

capillary malformations/port wine stains

made of tiny blood vessels. Quite common and occurs 3 out of 1000 babies.

usually flat, red, and color can become darker as the child ages. may become thick and lumpy through the ages

Question 23

Answer 23

spider angioma/spider nevus

type of talengectiasia, with a central red spot and reddish extension that radiates outwards

can be normal in around 10 - 15% of healthy adults and young children, but may be abnormal and a sign of liver disease

Question 24

found on the back of the neck of a baby

Answer 24

stork bite or naevus flammeus nuchae

congenital capillary malformation that is usually temporary on newborns

Question 25

what is this and what is the clinical triad often assoc. with this?

Answer 25

henoch schonlein purpura usually HSP presents with the triad of purpuric rash, joint pain/swelling, and abdominal pain with a recent history of upper respiratory tract infection vasculitis affecting 10 - 12 years olds ix: FBE, UEC, blood culture Tx: steroid for mild joint/abdominal pain - not yet proven to help prevent renal complciations complications: possible renal complicaitons

Question 26

what are posisble differential diagnoses?

Answer 26

nappy rash differential diagnoses: suberrheoiec dermatitis candidiasis irritant contact dermatitis atopic dermatitis

Question 27

What is the treatment for the following lesion:

Answer 27

``` Topical antifungal If chronic (with erosion, scale, fissuring, maceration), extensive, or with nail involvement (onychomycosis) - oral antifungal indicated ``` This is acute tinea pedis * begins with intensely pruritc, sometimes painful, erythematous vesicles or bullae between the toes or on the soles, frequently extending up the instep. * beware of secondary staph with lymphangitis * sweaty feet o.e * diagnosis - history and clinical picture is characteristic but diagnosis can be confirmed with potassium hydroxide preparation. * ddx: dyshidrotic eczema (pompholyx)