[Lipoma of the mammillary body].

Pathologisches Institut, Universität Erlangen-Nürnberg, BRD.
Zentralblatt für allgemeine Pathologie und pathologische Anatomie 02/1987; 133(4):377-83.
Source: PubMed

ABSTRACT A lipoma of the base of the brain, located at the right mammillary body, was unexpectedly discovered during the autopsy of a 73 year old man. Current theories concerning the development of intracranial lipomas are reviewed.

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    ABSTRACT: Osteolipomas are distinguished from other intracranial lipomas by their arrangement of central adipose and peripheral osseous tissues and by characteristically arising in the suprasellar/interpeduncular region. We report computed tomography (CT), magnetic resonance imaging (MRI), and pathology findings from this 34-year-old man who underwent surgical removal of this benign lesion. This case displays the distinctive histopathology that has been reported in 13 of 31 (42%) lipomas in this region. In contrast, ossification of lipomas at other intracranial sites is relatively rare. Ossification should be expected in many suprasellar/interpeduncular lipomas, and osteolipoma should be included in the radiologic differential diagnosis of fat-intensity masses with calcification in this region.
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