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Preoperative enhanced head computed tomography (CT) with contrast. (A) Nonenhanced CT shows a mass (arrow) adjacent to the tentorium cerebellum, hyperdense compared to grey matter, with no calcification. (B) Postcontrast CT reveals a vivid homogeneously enhanced mass (arrow) without a clear dural tail. (C) Axial noncontrast enhanced CT image does not show bone changes.
