Porokeratosis.
Pink colored patches that usually occur on the limbs.
Porokeratosis
Multiple Porokeratosis is a skin condition of the lower legs. Multiple small pink scaley patches may be a cosmetic concern.
What is Porokeratosis ?
Porokeratosis are dry patches on the arms or legs which are characterised by the ridge-like border that surrounds them. There are different types of Porokeratosis with the most common type being DSAP (‘Disseminated Superficial Actinic Porokeratosis’).
Who gets them?
DSAP usually runs in families and is usually seen around the age of 35-40 years. High levels of past sun exposure are a risk factor.
What are the clinical features?
DSAP appears as annular patches of pale pink skin. The centre of the lesion is often smooth however it can be dry and scaly.
The patches have a slightly raised edge that is best seen with a dermatoscope. This border is often darker than the rest of the lesion.
DSAP is more commonly seen on sun exposed areas of the lower arms or legs.
The appearance may not be that specific and the diagnosis is usually confirmed with a punch biopsy.
Gallery of Porokeratosis
Please click on the images for details.
What is the treatment of DSAP?
Treatment for DSAP has not been found to be very successful especially in the long term. Once the diagnosis is made, the treatment options vary. The key is to distinguish DSAP from other skin conditions and skin cancers such as (superficial BCC) that may appear similar.
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