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

Abstract

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.