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Case 4. Primary intracranial choriocarcinoma of the suprasellar region in a 14-year-old girl. A, Sagittal T1-weighted image shows an isointense mass, interspersed with foci of hyperintensity. B, T2-weighted image shows a ringlike mass with a solid hypointense rim wall. Sagittal (C) and coronal (D) postcontrast T1-weighted images show ringlike asymmetric thick-rimmed enhancement with mural nodular enhancement.
