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13-month old female with increasing head circumference and pathology proven DIG. A) Hematoxylin and Eosin (H&E) 100x stains of the solid component of tumor showing a desmoplastic spindle cell tumor with densely eosinophilic collagenous background. B) H&E, 40x. Cortical surface of tumor showing the superficial location of the tumor as well as tumor growth into the leptomeninges. Leptomeningeal vessels are prominent within the superficial portions of the tumor.
