Unlikely: Fat necrosis is one of the common causes of a nodule in the skin after trauma. Cancer usually does not develop within weeks, so that seems unlikely. Was it possible there was lump there before, and you only notice it now after the injury? Without an age, there are some other possibilities that could be seen: gout, arthritis, etc.
Answered 11/28/2019
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A doctor has provided 1 answer
A doctor has provided 1 answer
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