Intracranial solitary fibrous tumor is a rare neoplasm described for the first time around the mid 90’s by Carneiro et al. These kinds of tumors are typically dural-based neoplasms of mesenchymal origin accounting for ~1% of all primary central nervous system tumors. Is commonly found in the mediastinum and visceral pleura; however, it also occurs in the pleura external sites, such as the head and neck, sinuses, orbits, thyroid, pericardium, peritoneum, liver and mesentery.

This case shows a solid-appearing extra-axial well-circumscribed mass located in the right frontotemporal region that expands to the adjacent bone and subgaleal soft tissue, with heterogeneous signal on T2 weighted series ("yin-yang" appearance).