Very common tumor, soft, compressible, mobile under the skin when pressed with the fingers, painless or sometimes sensitive, consisting of mature adipose tissue often carrying chromosomal abnormalities
Most common locations
Posterior cervical fibrolipoma in elderly subjects
Subaponeurotic lipoma of the forehead in adult males
Perisudoral lipoma of the limb roots, particularly the upper thighs
Brown fat lipoma (hibernoma) of the supraclavicular or interscapular regions
Lumbosacral lipoma, sometimes associated with occult spinal dysraphism