Giant lipoma of the back

Giant lipomas are occasional mesenchymal tumours that are usually located deep in the body. The lipoma cells are believed to arise from primordial mesenchymal fatty tissue cells; thus, they are not of adult fat cell origin. They tend to increase in size with body weight gain, but interestingly, weight loss usually does not decrease their sizes. They do not cause any symptoms other than those determined by the space occupying mass. They are described as ‘giant’ beyond 1 kg of weight and 10 cm of diameter.