In psoriasis candle grease sign is a confirmatory sign, in this sign we are suppose to scratch the patches of psoriasis with a sharp edge like scale or knife and if scales are collected on that and they are having greasy nature then this sign will be positive. But in my patients scales are there but they are of dry nature scales are not greasy so should I consider this as candle grease sign positive or negative? Please guide?
dr.kartikey Tyagi
I think scales should be greasy then only candle grease sign will be possitive.
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Sagar Bhinde
We have to see the skin (and not the scale) after scratching, for candle grease sign. After scratched, psoriatic scales fall off and if revealing a shiny candle-like surface, it should be considered as positive candle grease sign.
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