“Sun-ray” periosteal reaction in the calvarium – uncommon presentation of a common disease

Meningiomas usually present with vague neurological symptoms or are incidentally detected on imaging. Radiologists are aware of the classical imaging picture of this entity comprising of enhancing extra-axial mass with associated hyperostosis. However, the presence of an aggressive sunburst type of periosteal reaction in a primary intra-osseous osteolytic meningioma, along with an extra-axial soft tissue as seen in our case has not been described previously in the literature.