Neuroimaging of tumefactive multiple sclerosis with atypical features

Area of Science:

• Neurology
• Neuroradiology
• Neuroimmunology

Background:

• Tumefactive demyelinating lesions (TDL) or tumefactive multiple sclerosis (TMS) are rare demyelinating diseases.
• TMS often presents as a diagnostic challenge, mimicking intracranial neoplasms, infections, or other pathologies.
• Typical MRI features include large size, edema, and incomplete ring enhancement, often leading to biopsy.

Observation:

• This study presents a biopsy-proven case of TMS.
• The case exhibited atypical imaging features not commonly associated with TMS.
• Advanced MRI techniques, including diffusion-tensor imaging, were utilized for evaluation.

Findings:

• The case demonstrated that TMS can present with unusual imaging characteristics.
• Diffusion-tensor imaging provided valuable insights into the lesion's properties.
• Integration of clinical, imaging, and pathological data is crucial for accurate diagnosis.

Implications:

• Recognizing atypical TMS imaging features can help avert unnecessary biopsies.
• Advanced MRI techniques can improve diagnostic accuracy for challenging demyelinating lesions.
• Further research into the spectrum of TMS imaging findings is warranted.