Intracerebral metastases other imaging findings

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Sujit Routray, M.D. [2]

Other Imaging Findings

Magnetic Resonance Spectroscopy

• MR spectroscopy may be helpful in the diagnosis of intracerebral metastases.
• Findings on MR spectroscopy include:

• Intratumoural choline peak with no choline elevation in the peritumoral edema
• Any tumor necrosis results in a lipid peak
• N-Acetylaspartate (NAA) depleted

Magnetic Resonance Perfusion

• MR perfusion demonstrates reduced CBV (cerebral blood volume) and CBF (cerebral blood flow) in the region of metastasis. Surrounding edema demonstrates normal CBV.

Gallery

• 
  _{MR perfusion of brain of a known case of renal cell carcinoma demonstrates reduced CBV (cerebral blood volume) and CBF (cerebral blood flow) in the region of metastasis. Surrounding edema demonstrates normal CBV.}
• 
  _{MR perfusion of brain of a case of renal cell carcinoma demonstrates highly variable appearance of hemorrhagic metastases to the brain.}

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