The classic CT and MR imaging appearance of an astroblastoma in a 5-year-old female patient (patient 4).A, Axial non-contrast-enhanced CT scan shows the.

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Presentation transcript:

The classic CT and MR imaging appearance of an astroblastoma in a 5-year-old female patient (patient 4).A, Axial non-contrast-enhanced CT scan shows the solid component of the mass has a slightly higher attenuation than that of the adjacent gray matter (arr... The classic CT and MR imaging appearance of an astroblastoma in a 5-year-old female patient (patient 4).A, Axial non-contrast-enhanced CT scan shows the solid component of the mass has a slightly higher attenuation than that of the adjacent gray matter (arrow).B, Axial T2-weighted image (7935/115/1) depicts the relative lack of peritumoral T2 hyperintensity (representing vasogenic edema or tumor infiltration or both) given the large tumor size (arrowheads).C and D, Axial postcontrast T1-weighted images (450/18/1) depict intense heterogeneous enhancement of the solid portion (C, arrow) and rim enhancement of the cystic portion (D, arrow). The diagnosis of a malignant astroblastoma was confirmed on the basis of histologic findings. John D. Port et al. AJNR Am J Neuroradiol 2002;23:243-247 ©2002 by American Society of Neuroradiology