“…Membranocystose-like feature of MFN was first introduced in the osseous cystic lesions of a Japanese man in 1961. Macroscopically, hemorrhage, bright yellow liquified fat, necrotic area, calcification, and fibrosis can be seen [ 1 , 2 , 7 ]. Microscopically, in early stages of MFN due to phagocytosis, fatty tissue with hemorrhagic foci, enucleated adipocytes, foamy histocytes, and multinucleated giant cells can be detected [ [12] , [13] , [14] ].…”