Answer:
Chronic subdural hematoma
Explanation:
According to my research on studies made by different medical professionals, It is said that Hematoma is generally defined as a collection of blood outside of blood vessels. There are different types of hematoma. The one described in the question fits the description of Chronic subdural hematoma. This is a type of hematoma that is located under the covering of the brain (dura) and it begins to form several days or weeks after receiving a head injury.
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