Altunrende, Muhittin EmreEkin, Elif EvrimKımıloğlu, Elife2025-06-102025-06-102025Altunrende, M. E., Ekin, E. E., & Kimiloglu, E. (2025). A Different Result of Minor Head Trauma; Aggressive Periosteal Reaction. The Medical Bulletin of Haseki.13020072http://dx.doi.org/10.4274/haseki.galenos.2025.10007https://hdl.handle.net/20.500.12713/7302While the literature reports cases of calvarial lytic lesion, the association with aggressive periosteal reaction is rare. There are various opinions about the mechanics and treatment of these lesions. This article discusses a case of periosteal reaction, which caused a calvarial lytic lesion after minor head trauma, within the framework of existing literature. © 2025 The Author.eninfo:eu-repo/semantics/openAccessLytic LesionPeriosteumSkull Bone TumorSkull FractureTumor-like İmagingArticle631495210.4274/haseki.galenos.2025.10007Q3