[Pseudotumoral presentation of multiple sclerosis].

Area of Science:

• Neurology
• Neuroimaging
• Demyelinating Diseases

Background:

• Multiple sclerosis (MS) is a common central nervous system disease with diverse clinical and radiological manifestations.
• Demyelinating processes in MS can mimic central nervous system tumors.

Observation:

• A 45-year-old male presented with acute right hemiparesis and signs of intracranial hypertension.
• Brain CT and MRI revealed a left hemisphere mass lesion.
• Clinical course and imaging findings were key to diagnosing MS.

Findings:

• The case highlights the varied presentations of multiple sclerosis.
• Tumor-like demyelinating lesions can occur in MS.
• Diagnosis was confirmed through a combination of clinical assessment and advanced neuroimaging.

Implications:

• This case underscores the importance of considering multiple sclerosis in the differential diagnosis of brain tumors.
• Awareness of MS's diverse presentations is essential for accurate and timely diagnosis.
• Neuroimaging plays a critical role in differentiating MS lesions from neoplastic processes.