case_images: PMC9422988_01
case_images: Macroscopic view of a sagittal section of the encephalon fixed in buffered formalin highlights the neoformation in the cerebellopontine angle localization (arrow) and the uncal right herniation (asterisk).
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case_images: gf01
case_images: At cadaveric dissection, the brain showed smoothed convolutions and shallower grooves than normally and there was evidence of supratentorial herniation (uncal right) with tonsillar imprint (Figure 1).
case_images: Detailed macroscopic view of a longitudinal section of the yellowish color neoformation in the right pontocerebellar angle.
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case_images: PMC9422988_01_autopsy-12-e2021396-g02.jpg
case_images: gf02
case_images: In the right cerebellopontine subarachnoid area, there was an unencapsulated neoformation in 0.8 cm in diameter with a well-delimited surface of yellowish color and elastic consistency (Figure 2).
case_images: Photomicrograph of the cerebellopontine angle. A - adherent lipoma; a neoformation that cannot be separated from the cerebellar tissue with direct contact of the adipocytes with the nervous tissue (Masson trichrome, 50X); B - greater magnification of the neoplasm with an external portion consisting of fibrous tissue adhering to the structure (pseudocapsule) rich in small vessels and a central structure with proliferation of mature adipose tissue (H&E, 100X).
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case_images: PMC9422988_01_autopsy-12-e2021396-g03.jpg
case_images: gf03
case_images: On the other hand, histopathological investigations of the viscera and the cerebellopontine neoformation showed a formation composed by mature adipocytes, allowing to define it as an intracranial lipoma (Figure 3).
case_images: Photomicrograph of the Central nervous system. A - olivary body with neuronal eosinophilic degeneration (H&E,400X); B - olivary body with tissue spongiosis of the right temporal lobe (H&E, 200X); C - right temporal lobe with cortico-subcortical vascular congestion (H&E, 200X); D - right parietal lobe with leptomeningeal congestion (H&E, 400X).
case_images: autopsy-12-e2021396-g04.jpg
case_images: PMC9422988_01_autopsy-12-e2021396-g04.jpg
case_images: gf04
case_images: Areas of acute neuronal hypoxic distress in the bulbar site (olive) and diffuse cerebral edema of a severe degree, mainly in the right hemisphere, were also documented (Figure 4).