Computed tomography of lipoma of corpus callosum and choroid plexus lipoma: report of two cases

Computed tomography of an intracranial lipoma confined in the suprasellar cistern

A case of large intracranial lipoma involving the suprasellar cistern is presented in a 50-yr-old man with a history of occipital headaches. Evaluations by routine computed tomography (CT) combined with metrizamide CT cisternography were extremely useful in the diagnosis of this rare condition. Intracranial lipomas are reviewed in the literature and the role of CT evaluations is discussed.

Agenesis of corpus callosum and intraventricular lipomas

Intracranial lipomas are rare and usually do not have clinical expression. They are located most commonly in the interhemispheric fissure and may also be found in the quadrigeminal, ambient, chiasmatic, interpeduncular, sylvian, and perimesencephalic cisterns. Interhemispheric lipomas may be associated with choroid plexus lipomas. The ultrasonography, computed tomography, and magnetic resonance imaging findings are reported in a neonate with lateral ventricular choroid plexus lipomas and interhemispheric lipoma associated with agenesis of the corpus callosum.

Pericallosal lipoma extending through the choroidal fissure: US/CT/MRI correlation

Choroid plexus lipomas (CPL) are known to be associated with pericallosal lipomas (lipomas of the corpus callosum--LCC). Twenty-six cases have previously been reported. Approximately half of these lipomas are connected via the choroidal fissure (LCC-CPL); this connection is almost always bilateral. We present an unusual unilaterally connected LCC-CPL in a neonate.