R90: Abnormal findings on diagnostic imaging of central nervous system

R90.0: Intracranial space-occupying lesion

An intracranial space-occupying lesion refers to a mass that is found within the skull, but outside of the normal brain tissues. This type of lesion, often described as a 'growth', can develop due to various reasons such as tumors, abscesses, or cysts. A lesion growing in this region can place pressure on the brain due to the limited space within the skull, leading to a variety of symptoms that depend on the specific location and size of the mass. Patients may experience headaches, nausea, seizures, changes in personality or behavior, or neurological deficits such as weakness or loss of sensation. This condition typically requires a thorough clinical evaluation, including imaging studies like an MRI or CT scan, for accurate diagnosis. The course and progression of the condition are highly specific to the nature and growth rate of the lesion.