Homonymous Superior Quadrantanopia due to Erdheim-Chester Disease with Asymptomatic Pituitary Involvement

Figure 2

Bilateral tibial coronal T1 MRI showed bilateral asymmetrical hypointense lesions replacing the normal fatty signal intensity of both tibiae as compared to the normally appearing marrow fat signal in the talus. Note also the cortical thickening noted in the tibial cortices medially (arrows).