=====Inflammatory myofibroblastic tumor=====
An inflammatory myofibroblastic tumor (IMT) is a rare lesion with an uncertain prognosis and a disorder difficult to classify. IMTs are a heterogeneous group of lesions, sometimes indistinguishable from meningiomas and other expanding or inflammatory lesions of the central nervous system. 

A patient with IMT, who presented with recurrent retroocular pain radiating to the occipital region and no neurologic deficits, had early recurrence in spite of total resection of the lesion 
((Pascual-Gallego M, Yus-Fuertes M, Jorquera M, Gonzalez-Mat A, Ortega L,
Martinez-Martinez A, Zimman H. Recurrent meningeal inflammatory myofibroblastic
tumor: A case report and literature review. Neurol India. 2013
Nov-Dec;61(6):644-9. doi: 10.4103/0028-3886.125273. PubMed PMID: 24441334.)).