Intracranial Lipoma

About: Intracranial Lipoma is a research topic. Over the lifetime, 147 publications have been published within this topic receiving 2394 citations.

Lipoma of the quadrigeminal region with evidence of congenital origin.

Abstract: A case of a congenital lipoma most likely resulted in a localized developmental anomaly of the trochlear nerve at the embryonal age of 4 to 5 weeks. This finding supports the theory of the congenital origin of an intracranial lipoma in the quadrigeminal region.

Intracranial ossifying lipoma in a juvenile pig.

Abstract: A live 25kg 2.5-month-old purebred Hampshire boar in goo d physical conditio n was present ed to the University of Missouri-Columbia Veterinary Medi cal Diagnostic Laborat ory with a history of an acut e onse t of sympto ms referabl e to the central nervou s system. Suppurati ve men ingiti s and possible Streptococcus suis infection had been diagn osed in a herdmate the previous week . Th e pig was afebrile and preferred to remain in right lateral recumbency. When the pig was forced to walk , head tremors, wide-based stance, loss of balance, leaning to right , and falling to the right were not ed . Constant, horizontal nystagmus was also ev ide nt. Th e pig was elect rically stunned and exsa nguinated , and a co m plete necropsy was performed. Ti ssue specimens from all major organs, includ ing brain , lung, liver , spleen, kidn ey heart, mu scle, skin, bone, th yroid glands, adre na l glands , pancreas, and urin ary bladder , were placed in 10% neutral buffered formalin for fixati on . Reflect ion of the dura covering the cerebellum revealed a smooth 6x 8-cm oblong, rubbery, gra yish-white multilobular mass (Fig. I). Once the brain had been rem oved , com pressed remnan ts of the cerebellum were found immed iately beneath to the mass, which could not be manually sepa rated from the adjacent meninges. T he cut sur face of the ma ss was grayish whit e, slightly bulging, and greasy , and the mass fl oated in forma lin. An irregular 4x 6-m m blui sh-gray, tran slucent , firm flat plaque was present on the dorsa l asp ect of the ma ss, and embedded within the ma ss was a 1x 1.5-cm hard white nodul e. Th e cut surface of the nod ule had an outer rim of bone, whieh surrounded a red marrow cavity. No other significant lesions were noted exce pt for a large num ber of ascarids present throughout the entire length of the small intestin e and in the cecum . Histologically, the cerebellar mass was co mpose d pr imarily of lobules of adipose tissue interrupted by fibrou s co nnecti ve tissue septa of various th icknesses (Fig. 2). Single ner ves ofvarious diam eters, and sma ll clusters of ner ves were di spersed throughout the sectio n (Figs. 2, 3). Th e mass was sur ro unded by fibrou s connective tissue, whic h was parti cular ly thick in the areas ab utt ing cere bellar tissue. Th e re-

Interhemispheric Lipoma, Callosal Anomaly, and Malformations of Cortical Development: A Case Series.

Abstract: Intracranial lipomas are rare congenital malformations. The most common type of intracranial lipoma is the interhemispheric lipoma, which is frequently associated with callosal anomalies such as hypogenesis or agenesis of the corpus callosum. In contrast, interhemispheric lipomas are less often accompanied with malformations of cortical development (MCD). We report magnetic resonance imaging findings of three infants with an interhemispheric lipoma, associated with a callosal anomaly, and MCD: two infants with nodular interhemispheric lipoma, agenesis of the corpus callosum, and polymicrogyria, and one infant with interhemispheric curvilinear lipoma, hypoplasia of the corpus callosum, and heterotopias. An association was suggested regarding the occurrence of these malformations.

Small intracranial lipomas may be a frequent finding on computed tomography of the brain. A case series.

Abstract: Intracranial lipomas are described as a rare finding. In this small retrospective analysis of 50 cases undergoing brain CT for various reasons small intracranial lipomas where found in nine patients. In contrast to previous reports lipomas may be a frequent finding on CT imaging of the brain. In particular, these small lipomas seem to be incidental findings lacking clinical relevance. Radiologists should be aware of intracranial lipomas to establish proper differential diagnosis.