A Pediatric Radiology textbook and Pediatric Radiology digital library
Lipoma
Etiology: proliferation of fat tissue
US: not 100% diagnostic, may have variable appearance
CT: negative Hounsfield unit is diagnostic
Note: imaging cannot 100% reliably differentiate between lipoma, lipoblastoma, liposarcoma
Cases of Lipoma
Axial CT without contrast shows a symmetrical appearing chest wall (top), a fat density center-right sided chest wall mass (middle) and a fat density anterior left thigh mass (bottom).