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AJNR - American Journal of Neuroradiology

Published ahead of print on October 9, 2007
doi: 10.3174/ajnr.A0728

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Radiologic Findings in a Patient with Frontal Parafalcine Dendritic Cell Histiocytoma

A.S. Abi-Ghanem^a, O. Uzuner^b, F.B. Askin^c and D.M. Yousem^b

^a Hôtel-Dieu de France Hospital, Beirut, Lebanon
^b Department of Radiology, Johns Hopkins Medical Institutions, Baltimore, Md
^c Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, Md

View larger version (70K): [in this window] [in a new window]   Fig 1. MR imaging findings of the tumor at presentation. A, Axial T2-weighted and (B) axial postcontrast T1-weighted images demonstrate an avidly enhancing extra-axial mass centered in parafalcine location bilaterally, mainly on the right. C, After surgical intervention. Axial postcontrast T1-weighted image shows resection of the tumor locating in the right parafalcine location with a residual tumor at the superior sagittal sinus and left parafalcine region.

View larger version (160K): [in this window] [in a new window]   Fig 2. Pathology smears from surgical specimen. The lesion is composed of sheets of large cells with prominent glassy, eosinophilic cytoplasm and prominent red nucleoli. Mitotic activity was minimal. Hematoxylin-eosin stain, original magnification x250.