“…Histologically, oral lipomas are divided into subtypes based on the matrix and the properties of tumor cells: simple lipoma, fibrolipoma 4,12,13 , spindle cell lipoma 5,14 , intramuscular lipoma 14 , chondrolipoma, pleiomorphic lipoma, myxoid lipoma or myxolipoma 15 , angiolipoma 16,17 , osteolipoma 18,19 , angiomyxolipoma, sialolipoma, infiltrating lipoma, perineural lipoma, intraneural lipoma and atypical lipoma 1,2,8 . Despite the fact that the etiology and pathogenesis of the tumor are not clear, two main theories have been claimed: (i) The Hypertrophy theory, which correlates obesity and inadvertent growth of adipose tissue with the formation of oral lipoma 1 .…”