On a plain radiograph (X-ray) I reviewed recently, I encountered a classic lesion straight out of a textbook: A broad-based bony outgrowth located at the proximal medial metaphysis of the tibia, demonstrating clear corticomedullary continuity with the parent bone and projecting distally (downward) away from the growth plate. When we first encounter this image, a single term immediately comes to mind: Exostosis. However, right at this juncture, one of the most intriguing debat

Clinical History 46-year-old female patient with the chief complaint of headache. Imaging Findings CT Findings (Paranasal Sinus): Well-defined area in the sphenoid sinus. Contains fat density foci and small punctate calcifications. No aeration in this region; the rest of the sinus is patent. No bone expansion, cortical thinning, or destruction. MR Findings: T1: Central iso- to mildly hyperintense, consistent with fat content. T2: Central iso- to mildly hyperintense, with