D43: Neoplasm of uncertain or unknown behaviour of brain and central nervous system
D43.1: Neoplasm of uncertain or unknown behaviour: Brain, infratentorial
When there is abnormal growth of tissue, then this is also referred to as a tumor. The tissue in the body is made up of cells. A tumor disorder involves the cells multiplying more than normal. This results in abnormal or excess tissue forming. A tumor can be benign or malignant.
The brain is separated into an upper part and a lower part by a firm membrane. You have abnormal growth of tissue in the lower part of your brain.
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