What is the next best step in management for a patient found to have imaging consistent with solitary fibrous tumor? (poll 9517276)

What is the next best step in management for a patient found to have imaging consistent with solitary fibrous tumor?

Neo-adjuvant chemo-radiation followed by surgical excision

Intravenous antibiotics

Diagnostic tissue biopsy

Chemo-radiation

Surgical excision of the mass

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