Osteolipomas of the tuber cinereum.
Osteolipomas of the tuber cinereum traditionally have been classified as meningeal lipomas that are located at the tuber cinereum. Examination of two cases and a review of 22 others found in the literature show that these lesions exhibit a remarkable consistency in their size and in their location between the corpora mamillaria and the pituitary stalk, and that approximately half of them contain a well-organized bone spherule with a central marrow space. These aspects differ from the features of meningeal lipomas in general; reasons are given for considering that the osteolipomas are displaced elements of the mesenchyme encompassing walls of the craniopharyngeal duct.
D000273:Adipose Tissue / Q000473:pathology; D000293:Adolescent; D000328:Adult; D000368:Aged; D001932:Brain Neoplasms / Q000473:pathology*; D005260:Female; D006801:Humans; D007031:Hypothalamus / Q000473:pathology*; D007223:Infant; D007231:Infant, Newborn; D008067:Lipoma / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010006:Osteoblasts / Q000473:pathology; D010010:Osteoclasts / Q000473:pathology; D014371:Tuber Cinereum / Q000473:pathology*