This is an evil dream that denotes bad tidings for the dreamer.
To dream of seeing someone with gangrene foretells sorrow and loss, even a death of a near relative. Sometimes death is not the actual physical kind but rather the ending of a way of life. Search the dream for clues that point in that direction.
1. Indicates bad times are brewing for the dreamer, including loss of loved ones.
2. One is afﬂicted with a physical or mental condition that can kill unless dealt with.
3. The need to cut out a way of life that is damaging.
Dreams of gangrene denote that you’ve been pessimistically projecting into your future. You are purifying and cleansing poison from your body, mind, and spirit so that you can consciously choose thoughts that are in harmony with your well-being. See Venting Dreams.
To dream that you see any one afflicted with gangrene, foretells the death of a parent or near relative.
The dream symbol you are looking for is absolutely there, try searching the symbol one by one.