Diagnosis of common cerebral masses lateral to the sella on MRI

YI Zi-sheng; LIU Yi-ping

Journal of China Clinic Medical Imaging ›› 2007, Vol. 18 ›› Issue (1) : 5-7.

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Diagnosis of common cerebral masses lateral to the sella on MRI

YI Zi-sheng, LIU Yi-ping

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Abstract

Objective: To explore the characteristics and evaluation of common parasellar masses on MRI. Methods: The characteristics of 28 common masses lateral to the sella on MRI were reviewed. Seven cases cavernous hamangiomas, 12 cases meningiomas, 5 cases schwannomas and 4 case epidermoid cysts. Results: The cavernous hamangiomas showed homogeneously hypointense on T1WI and hyperintense on T2WI. The lesions were markedly enhanced. Most meningiomas showed isointense on T1WI and T2WI. Some lesions showed isointense in the periphery and hypointense in the center on T2WI. All the lesions were markedly enhanced and some lesions showed dural tail sign. The schwannomas showed slight hypointense on T1WI and hyperintense on T2WI. Most of them were of dumb-bell shape stretching between middle and posterior cranial fossa. Most lesions appeared cystic changes and had enhancement. The signals of epidermoid cysts were variable on plain scan. The lesions had no enhancement. Conclusion: The common masses adjacent to the sella have typical characteristics on MRI. The histology of masses can be accurately diagnosed on MRI.

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brain neoplasms / magnetic resonance imaging

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YI Zi-sheng;LIU Yi-ping. Diagnosis of common cerebral masses lateral to the sella on MRI[J]. Journal of China Clinic Medical Imaging. 2007, 18(1): 5-7