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  • Title: Recurrent intracranial solitary fibrous tumor initially diagnosed as hemangiopericytoma.
    Author: Hori E, Kurimoto M, Fukuda O, Takahashi C, Nagai S, Oya T, Endo S.
    Journal: Brain Tumor Pathol; 2007; 24(1):31-4. PubMed ID: 18095142.
    Abstract:
    We describe a case of an intracranial solitary fibrous tumor that recurred three times consecutively in an 11-year period. A 72-year-old man presented with a headache and gait disturbance. Magnetic resonance imaging (MRI) revealed a dumbbell tumor at the left tentorium. The tumor was removed but recurred. The first diagnosis was hemangiopericytoma, but all specimens showed a "patternless pattern" and few reticulin fibers, which features were not compatible with hemangiopericytoma. All tumors showed immunoreactivity for CD34 and bcl-2. These results point to a solitary fibrous tumor (SFT) and not to hemangiopericytoma. We present here a hypercellular spindle-cell tumor that was very similar to hemangiopericytoma but is better diagnosed as SFT.
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