ICA Flashcards
(230 cards)
A patient with the following rash presents with bloating and abdominal pain. What is the most likely diagnosis?
Dermatitis hypertiformis - coeliacs rash.
What is dermatitis hypertiformis?
A rash associated with elbows, knees and buttocks, seen in Coeliac’s disease.
What is the blood test associated with Coeliac’s disease?
IgA TTG.
What may be seen on a skin biopsy for a patient with dermatitis hypertiformis?
IgA deposits in a granular pattern.
What is the most likely diagnosis for the following rash?
Erythema nodosum.
What is the most likely diagnosis, based on the following image?
Erythema multiforme.
What is the most likely diagnosis for the following condition?
Pyoderma gangrenosum.
How does inflammation appear in black skin?
It may appear slightly red, darker brown, grey, purple or even black.
In dark skin, what should be looked at in central cyanosis?
Mucous membranes, as it is harder for darker skin tones’ tongue to appear blue.
Why may the capillary refill time of a black person not be useful?
A large proportion of black people do not blanch.
What is traction alopecia?
Certain hairstyles such as weaves, braids or even tight ponytails can result in the hairline being pulled back significantly.
Where does basal cell carcinoma usually present in black people?
On the soles of the feet.
What is dermatitis papulosa nigra?
Multiple small, dark bumps on the skin that only affects people of colour. It is harmless.
How does smoking affect the skin?
It causes poor wound healing.
Predisposes to skin cancer.
Nicotine staining on the fingers.
What should be done in a dermatology examination?
SCAM:
- Site and distribution for a rash/ size and shape of a lesion.
- Colour and configuration.
- Associated changes.
- Morphology.
What should be done for pigmented lesions examinations?
ABCDE:
- Asymmetry.
- Border (regular or irregular).
- Colour.
- Diameter.
- Evolution.
What are different sites and distributions that skin conditions can affect?
Flexor surfaces.
Extensor surfaces.
Generalised.
Follicular - affected individual hair follicles.
Dermatomal distributions.
Seborrhoeic - around oily areas.
Photo-sensitive - areas exposed to the sun.
What is this distribution?
Follicular.
What are the following two distributions?
Left is seborrhoeic.
Right is photo-sensitive.
What is a hive?
An area of raised skin due to dermal oedema.
What is leichenification?
Thickening of the epidermis with exaggerated skin lines, often seen in chronic itching or rubbing.
What is hypertrichosis?
Increased hair growth in non-androgenic areas.
What do the following terms mean:
- Intertriginous
- Discoid/ nummular
- Annular
- Abscess
- Comedone
- Affecting the skin folds.
- Round lesion.
- A circle or ring with a different morphology in the middle to the edges.
- Localised accumulation of pus on the dermis or subcutaneous tissue.
- Pores or hair follicles that have gotten blocked with bacteria, oil and dead cells forming a bump.
What is the difference between an erosion and ulcer?
Erosion - loss of epidermis.
Ulcer - loss of epidermis and dermis.