Advertisement

MRI of intradural-extramedullary spinal neurinomas and meningiomas

      This paper is only available as a PDF. To read, Please Download here.

      Abstract

      The magnetic resonance images of 16 patients with intradural-extramedullary spinal tumors, consisting of 11 neurinomas and five meningiomas were reviewed The neurinomas appeared hypointense compared to the spinal cord on unenhanced T1-weighted images (T1WI) in nine of 11 patients, and hyperintense on T2-weighted images (T2WI) in nine of 11 patients. Neural foraminal extension was present in two cases. All 10 neurinomas were markedly enhanced; six of them exhibited ring-like enhancement on Gadolinium-DTPA (Gd-DTPA)-enhanced T1WI. The meningiomas appeared isointense on unenhanced T1WI in four of five patients and on T2WI in three of four patients. Three meningiomas showed moderate homogeneous contrast enhancement after the intravenous administration of Gd-DTPA. It is concluded that careful scrutiny of magnetic resonance images facilitates the differential diagnosis of spinal neurinomas and meningiomas.

      Keywords

      To read this article in full you will need to make a payment

      Purchase one-time access:

      Academic & Personal: 24 hour online accessCorporate R&D Professionals: 24 hour online access
      One-time access price info
      • For academic or personal research use, select 'Academic and Personal'
      • For corporate R&D use, select 'Corporate R&D Professionals'

      Subscribe:

      Subscribe to Clinical Imaging
      Already a print subscriber? Claim online access
      Already an online subscriber? Sign in
      Institutional Access: Sign in to ScienceDirect

      References

      1. Shapiro R. Extramedullary Intradural Tumors. 4th ed. Myelography. Year Book Medical Publishers, Inc, Chicago1984: 358-385
        • Zimmerman R.A.
        • Bilaniuk L.T.
        Imaging of tumors of the spinal canal and cord.
        Radiol Clin North Am. 1988; 26: 965-1007
        • Scotti G.
        • Scialfa G.
        • Colombo N.
        • Landoni L.
        MR imaging of intradural extramedullary tumors of the cervical spine.
        J Comput Assist Tomogr. 1985; 9: 1037-1041
        • Schroth G.
        • Thron A.
        • Guhl L.
        • Voigt K.
        • Niendorf H.P.
        • Garces L.R.N.
        Magnetic resonance imaging of spinal meningiomas and neurinomas: Improvement of imaging by paramagnetic contrast enhancement.
        J Neurosurg. 1987; 66: 695-700
        • Schomer W.
        • Schubeus P.
        • Lanksch W.
        • Felix R.
        “Meningeal sign”: A characteristic finding of meningiomas on contrastenhanced MR images.
        Neuroradiology. 1990; 32: 90-93
        • Sze G.
        • Abramson A.
        • Krol G.
        • Liu D.
        • Amster J.
        • Zimmerman R.D.
        • Deck M.D.F.
        Gadolinium-DTPA in the evaluation of intradural extramedullary spinal disease.
        AJNR. 1988; 9: 153-163
        • Sze G.
        Gadolinium-DTPA in spinal disease.
        Radiol Clin North Am. 1988; 26: 1009-1024
        • Gentry L.R.
        • Jacoby C.G.
        • Turski P.A.
        • Houston L.W.
        • Strother C.M.
        • Sackett J.F.
        Cerebellopontine angle-petromastoid mass lesions: Comparative study of diagnosis with MR imaging and CT.
        Radiology. 1987; 162: 513-520
        • Press G.A.
        • Hesselink J.R.
        MR imaging of cerebellopontine angle and internal auditory canal lesions at 1.5 T.
        AJR. 1988; 150: 1371-1381
        • Breger R.K.
        • Papke R.A.
        • Pojunas K.W.
        • Haughton V.M.
        • Williams A.L.
        • Daniels D.L.
        Benign extraaxial tumors: Contrast enhancement with Gd-DTPA.
        Radiology. 1987; 163: 427-429
        • Watabe T.
        • Azuma T.
        T1 and T2 measurements of meningiomas and neurinomas before and after Gd-DTPA.
        AJNR. 1989; 10: 463-470
        • Long D.M.
        Vascular ultrastructure in human meningiomas and schwannomas.
        J Neurosurg. 1973; 38: 409-419