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Test yourself on... Strawberry naevi

Use our quick quiz to check your clinical knowledge

1What are strawberry naevi?

Benign vascular neoplasms that have a proliferative phase in the first few weeks of life followed by a spontaneous involution (30 per cent present at birth, 70 per cent develop in first few weeks after birth).

2Haemangiomas are more common

in Caucasians. True or false?

True. The incidence is: white, 10-12 per cent; black, 1.4 per cent; and Asian, 0.8 per cent.

3Are haemangiomas more common in males or females?

Females are affected more often than males by a ratio of 3:1.

4On which parts of the body are strawberry naevi more common?

Sixty per cent of strawberry naevi occur on the head and neck, 25 per cent on the trunk, and 15 per cent on the extremities.

5Haemangiomas are tumours of the skin and do not occur at non-cutaneous sites. Is this statement true or false?

It is false. In fact, haemangiomas also can occur in liver, gastrointestinal tract, central nervous system, pancreas, gall bladder, thymus, spleen, lymph nodes, lung, urinary bladder and adrenal glands.

6By what age do the majority of haemangiomas disappear?

50 per cent by age five, 70 per cent by age seven and 90 per cent by age nine.

7Some 50-60 per cent of haemangiomas may leave some permanent changes in the skin. What permanent changes might occur?

Telangiectasias, superficial dilated veins, stippled scarring, epidermal atrophy (particularly with superficial lesions),

hypopigmentation or redundant skin with fibro-fatty residua (especially with subcutaneous lesions).

8In general, haemangiomas are best left to resolve with time. When is this not the case?

When they are impinging on vital structures or affecting blood flow to limbs. In these cases surgical debulking may be necessary.

9Apart from surgery, how else can strawberry naevi be treated?

Corticosteroids either orally or intralesional or lasers. With the latter scarring may occur which needs to be weighed up against the benefits of hastened involution.

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