Mamourian A C, Towfighi J
AJNR Am J Neuroradiol. 1986 Nov-Dec;7(6):1081-6.
MR brain scans of 672 consecutive patients were examined prospectively to determine the incidence of high-signal pineal glands on T2-weighted images. The scans were obtained on either a 0.15-T or 0.5-T unit. This finding was present in 29 patients, none of whom had hydrocephalus or symptoms of a pineal mass. A CT scan was available in 17 of these cases and none of these demonstrated a solid pineal mass. Because of the frequency of this observation (4.3%) and the absence of associated findings, it was concluded that benign pineal cysts are the most likely explanation for this high signal. It is important for the radiologist to consider benign cysts in the differential diagnosis of a bright pineal gland on T2-weighted MR images.
对672例连续患者的脑部磁共振成像扫描进行前瞻性检查，以确定T2加权图像上松果体高信号的发生率。扫描在0.15-T或0.5-T设备上进行。29例患者出现这一表现，其中无一例有脑积水或松果体肿块症状。17例患者有CT扫描结果，均未显示松果体实性肿块。鉴于这一观察结果的出现频率（4.3%）以及无相关伴随表现，得出结论：良性松果体囊肿最有可能是这种高信号的原因。放射科医生在T2加权磁共振图像上对明亮松果体进行鉴别诊断时考虑良性囊肿很重要。
