Coextensive Meningioma and Cholesterol Granuloma in the Forebrain of a Cat.
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ABSTRACT:
SUBMITTER: Chawla P
PROVIDER: S-EPMC4852139 | biostudies-literature | 2015 Nov-Dec
REPOSITORIES: biostudies-literature
Publications
Coextensive Meningioma and Cholesterol Granuloma in the Forebrain of a Cat.
Chawla P P Cook L L Himmell L L Zekas L L Oglesbee M M
Journal of veterinary internal medicine 20150819 6
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Project description:PurposeTo report a case of orbital cholesterol granuloma and discuss the orbital findings seen in this entity.ObservationA 38-year-old male presented with an 8-month history of progressive left upper lid ptosis and hypoglobus. Clinical examination was significant for 3 mm of hypoglobus and restricted supraduction in the left eye. Contrasted computed tomography imaging revealed a well-circumscribed lesion in the superotemporal orbit causing extensive bone erosion that appeared to arise from the lacrimal gland. An incisional biopsy was performed, and histopathological evaluation demonstrated fibrovascular tissue surrounding a mixture of histiocytes and cholesterol clefts, consistent with a cholesterol granuloma.Conclusions and importanceOrbital cholesterol granulomas are rare lesions that are predominantly found in the superotemporal orbit. These lesions can be associated with marked bony changes in the superotemporal fossa that can be mistaken for a lacrimal gland neoplasm; however, bony erosion is a hallmark of this lesion and should be considered on the differential diagnosis of any lacrimal gland mass with extensive bony erosion.
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