Large pineal cyst in a healthy 38-year-old man.

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Presentation transcript:

Large pineal cyst in a healthy 38-year-old man. Large pineal cyst in a healthy 38-year-old man. A, Sagittal noncontrast T1WI (gradient-echo; TR/TE/flip angle = 24 ms/6 ms/25°). B, Axial T2WI (fast spin-echo; TR/TE/echo-train length = 4200 ms/128 ms/14). C, Sagittal noncontrast follow-up T1WI, 8 years and 7 months after initial scans. D, Sagittal noncontrast follow-up T2WI, 8 years and 7 months after initial scans. The arrows indicate the pineal cyst. The pineal cyst touches the superior colliculi of the quadrigeminal plate without causing any deformity. However, no evidence of an obstructive hydrocephalus or of a narrowing of the aqueduct of the midbrain is seen. Y. Pu et al. AJNR Am J Neuroradiol 2007;28:1706-1709 ©2007 by American Society of Neuroradiology