"stage 1: sharply delineated, viable lipomas with homogeneous fat content"
"stage 2: predominantly fatty lesions with central necroses, calcifications or ossifications"
"stage 3: heterogeneous, fat-containing lesions with multiple necroses, cystic transformations, wall sclerosis and extensive calcifications or ossifications"
"Intraosseous lipomas account for one of the 'I's in the popular mnemonic for lucent bone lesions FEGNOMASHIC."
Expected headings
"Stage 1"
"Stage 2"
"Stage 3"
"Intraosseous lipomas can present in an extremely wide age range (5-85 years), but the peak age at discovery is usually in the 4th to 5th decades of life 8. There is a slight male predilection (M:F ~1.3:1) 6."
"Intraosseous lipomas that do not affect bone stability may be treated conservatively. Symptomatic cases or those with imminent fractures are treated by curettage 8 and bone grafting. There is no recurrence after surgical therapy 8, however, malignant transformation has been sporadically described 1."
"stage 2: predominantly fatty lesions with central necroses, calcifications or ossifications"