Showing papers on "Intracranial Lipoma published in 2016"

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.

Intracranial interhemispheric osteochondrolipoma: Diagnostic and surgical challenges in an extremely rare entity.

Abstract: Intracranial lipomas are rare developmental lesions, predominantly occurring in the interhemispheric location. Osteochondrolipoma is an extremely rare variant of lipoma with osseous and chondroid differentiation. We present a case of interhemispheric osteochondrolipoma, in a 2.5-years-old male child which was detected antenatally, in association with corpus callosum agenesis. The lesion progressively increased in size with resulting compression of surrounding structures, and was subjected to microsurgical decompression. To the best of our knowledge, this is the first case of intracranial interhemispheric osteochondrolipoma in the existing medical literature. Peculiarities of this case and the diagnostic and surgical challenges are discussed.

Auditory Hallucinosis as a Presenting Feature of Interpeduncular Lipoma with Proximal P1 Segment Fenestration: Report of a Rare Case and Review of Literature on Peduncular Hallucinosis.

Abstract: The authors present a unique case of intracranial lipoma in the interpeduncular cistern associated with proximal P1 segment fenestration. This patient is a 20-year-old male with extensive psychiatric history and complaints of recent auditory hallucinations. Cranial magnetic resonance imaging (MRI) (T1, T2, and FLAIR) showed a hyperintense lesion in the left aspect of interpeduncular cistern with a prominent flow void within the hyperintense lesion suggestive of a combined vascular-lipomatous lesion. Computed tomography (CT) angiography showed a high-riding large tortuous P1 segment on the left side with proximal fenestration, the ectatic posteromedial limb harboring a fusiform dilated segment. Since there are anecdotal cases of cerebral aneurysms associated with intracranial lipomas, a conventional angiography was done, which confirmed a proximal left P1 fenestration and a fusiform-dilated segment, and no aneurysm. There are few cases of hallucinations associated with a vascular midbrain pathology reported in literature, but hallucinations associated with a combination of lipoma and arterial ectasia have never been reported. This article not only demonstrates the MRI and angiographic appearance of this rare lipomatous lesion but also highlights this unique association and significance of auditory hallucinations as a clinical presentation, akin to peduncular hallucinosis.

Intracranial Lipoma: A Rare Variant of Brain Tumor

Abstract: 72 A 23-year-old male presented with multiple episodes of seizures and headache for few months. On neurological examination his GCS was 15/15 without any defi cits. CT scan of head was done which (Figure 1A) showed hypodense lesion in corpus callosum region. To further confi rm the type of lesion MRI brain was done which showed hyperintense lesion in all T1W T2WI and FLAIR images in the same region. However, the lesion appeared hypointense in fat suppression images (Figure 1B,C,D,E). On the basis of these radiological features the diagnosis of intracranial lipoma was made.3 Patient was started on anti-epileptic drugs (AED) following which he is completely seizure-free. MRI brain repeated after few years of regular follow up revealed no increase in size of the mass Intracranial lipoma is a benign slow growing congenital lesion, which accounts for <0.1% of all primary brain tumors.1,2 This congenital aberration stems from abnormal differentiation of persistent menix primitive, an area that constitutes the inner level of pia, arachnoid and dura mater.3 They can be found anywhere intracranially. The most common ones based on sites are1Pericallosal Lipoma (45%), Quardigeminal cistern lipoma (25%), Suprasellar cistern lipoma (15%), Cerebellopontine angle lipoma (10%), Sylvian fi ssure lipoma (5%). Our case is a pericallosal lipoma which is most common type. Anish M Singh, MS Department of Neurosurgery, Norvic International Hospital, Thapathali, Kathmandu, Nepal