q-Space Imaging in Meningioma

It has always been a goal in the medical sciences to develop diagnostic and imaging strategies having a minimum or no invasiveness and/or obliterating need of further invasive investigations. The differentiation of benign versus malignant tumors on the basis of imaging findings has always been a diagnostic dilemma as there is always some degree of overlap of imaging characteristics in both the categories [1,2]. In superficial lesions or in some abdominal visceral lesions, excision biopsy or fine needle aspiration cytology are relatively easy to perform and are adopted before deciding the management strategy. This distinction, however, becomes more important when we talk of brain lesions and at the same time biopsy is not always easy to do. Meningioma is mostly benign, but its atypical and malignant counterparts are notorious for recurrences and metastases even after apparent complete surgical removals [3,4]. Although, the lesion has been described to have particular features that warn about its atypical nature such as loss of its marginal irregularity, cystic and necrotic changes etc., but still are not confirmatory [1,5,6]. For obvious reasons, in this situation, a modality that can give an additional hint about the histopathological characteristic of the meningioma would matter a lot.