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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 23:243-247, February 2002
© 2002 American Society of Neuroradiology

Case Report
BRAIN

Astroblastoma: Radiologic-Pathologic Correlation and Distinction from Ependymoma

John D. Port^a, Daniel J. Brat^c, Peter C. Burger^b and Martin G. Pomper^a

^a Neuroradiology Division, Johns Hopkins Hospital, Baltimore, MD
^b Department of Pathology, Johns Hopkins Hospital, Baltimore, MD
^c Department of Pathology, Emory University Hospital, Atlanta, GA

Address reprint requests to John D. Port, MD, PhD, Division of Neuroradiology, Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905

Summary: Astroblastoma is a rare primary glial tumor with a characteristic appearance on neuroradiologic images. Typically, astroblastomas are large, lobulated, peripheral, supratentorial, solid, and cystic masses with relatively little associated vasogenic edema and tumor infiltration for their large size. The solid component of the mass has a bubbly appearance and a T2 signal that is isointense to gray matter. Punctate calcifications are often present. Neuroradiologists should be familiar with the characteristic appearance of this tumor.

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