Imaging of central neurocytomas

Area of Science:

• Neuro-oncology
• Neuroradiology
• Medical Imaging

Background:

• Central neurocytoma (CN) is a rare, typically benign, intraventricular tumor.
• It requires careful consideration in the differential diagnosis of intraventricular masses.
• Accurate and timely diagnosis is crucial for appropriate patient management.

Purpose of the Study:

• To outline the diagnostic imaging features of central neurocytoma.
• To emphasize the role of various imaging modalities in identifying CN.
• To discuss the potential of advanced imaging techniques.

Main Methods:

• Review of imaging characteristics of central neurocytoma.
• Inclusion of noncontrast computed tomography (CT) findings.
• Detailed description of magnetic resonance (MR) imaging features, including T1, T2, and postcontrast sequences.
• Mention of magnetic resonance spectroscopy (MRS) and advanced perfusion/permeability imaging.

Main Results:

• Central neurocytoma classically presents as a partially calcified mass on CT.
• Characteristic MR findings include a soap-bubble multicystic appearance on T2-weighted images.
• Heterogeneous enhancement is typically observed on T1-weighted postcontrast MR images.
• MR spectroscopy, perfusion, and dynamic contrast imaging show promise in diagnosis.

Conclusions:

• A combination of noncontrast CT and contrast-enhanced MRI is essential for diagnosing central neurocytoma.
• Specific imaging features on CT and MRI aid in differentiating CN from other intraventricular lesions.
• Emerging advanced MR techniques may further improve diagnostic accuracy for central neurocytoma.