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MRI of dorsal mesencephalic lipomas

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      Abstract

      We detected 23 intracranial lipomas using MRI. Among them were nine pericallosal lipomas, six lipomas at the dorsal surface of the midbrain, and eight in other locations. In this paper, six lipomas at the dorsal surface of the midbrain were analyzed. Five of these lipomas were in the quadrigeminal cistern and one in the left-sided quadrigeminal cistern. Excluding the smallest lipoma, five of the six lipomas had irregular margins and were broadly based on the surface of the midbrain. In these five cases, deformities of the brain parenchyma were observed adjacent to the lipomas. A mildly dilated ventricular system was observed in one of the largest lipomas in a quadrigeminal cistern. Based on their characteristic shapes and locations, we termed them “dorsal mesencephalic lipomas.” Thus, the two preferential sites of intracranial lipomas were pericallosal and dorsal mesencephalic.

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      References

        • Kazner E.
        • Stochdorph O.
        • Wende S.
        • Grumme T.
        Intracranial lipoma: Diagnostic and therapeutic considerations.
        J Neurosurg. 1980; 52: 234-245
        • Dean B.
        • Drayer B.P.
        • Beresini D.C.
        • Bird C.R.
        MR imaging of pericallosal lipoma.
        AJNR. 1988; 9: 929-931
        • bonderahe A.R.
        • Niemer W.T.
        Intracranial lipoma: A report of four cases.
        J Neuropathol Exp Neurol. 1944; 3: 344-354
        • Truwit C.L.
        • Barkovich A.J.
        Pathogenesis of intracranial lipoma: An MR study in 42 patients.
        AJNR. 1990; 11: 665-674
        • Maiuri F.
        • Cirillo S.
        • Simonetti L.
        • De Simone M.R.
        • Gangemi M.
        Intracranial lipomas: Diagnostic and therapeutic considerations.
        J Neurosurg Sci. 1988; 32: 161-167
        • Tart R.P.
        • Quisling R.G.
        Curvilinear and tubulonodular varieties of lipoma of the corpus callosum: An MR and CT study.
        J Comput Assist Tomogr. 1991; 15: 805-810
        • Osaka K.
        • Handa H.
        • Matsumoto S.
        • Yasuda M.
        Development of the cerebrospinal fluid pathway in the normal and abnormal human embryos.
        Child's Brain. 1980; 6: 26-38
        • Christensen W.N.
        • Long D.M.
        • Epstein J.I.
        Cerebellopontine angle lipoma.
        Hum Pathol. 1986; 17: 739-745
        • Halmagyi G.M.
        • Ebans W.A.
        Lipoma of the quadrigeminal plate causing progressive obstructive hydrocephalus.
        J Neurosurg. 1978; 49: 453-456
        • Maiuri F.
        • Corriero G.
        • Gallicchio B.
        • Simonetti L.
        Lipoma of the ambient cistern causing obstructive hydrocephalus.
        J Neurosurg Sci. 1987; 31: 53-58
        • Nabawi P.
        • Dobben G.D.
        • Mafee M.
        • Espinosa G.A.
        Diagnosis of lipoma of the corpus callosum by CT in five cases.
        Neuroradiology. 1981; 21: 159-162