Bourekas E C, Raji M R, Dastur K J, Francken G J, Engle D J, Nayak N T
Department of Radiology, Mercy Hospital of Pittsburgh, PA 15219.
AJNR Am J Neuroradiol. 1992 Jan-Feb;13(1):353-4.
Retroclival arachnoid cyst is a rare mass lesion, with only seven cases previously reported in literature. MR is the imaging modality of choice in its evaluation and in its differentiation from epidermoid cyst. The case reported here was surgically proved and had an uncharacteristic MR signal intensity that was higher than that of cerebrospinal fluid due to previous hemorrhage.
斜坡后蛛网膜囊肿是一种罕见的占位性病变，文献中此前仅报道过7例。磁共振成像（MR）是评估该疾病及其与表皮样囊肿鉴别的首选影像学检查方法。本文报道的病例经手术证实，因其既往出血，其磁共振信号强度表现不典型，高于脑脊液。
