Figure

Brown adipose tissue, a. Photomicrograph of brown adipose tissue from a newborn in a H&E-stained paraffin preparation. The ceils contain fat droplets of varying size. Note the large blood vessels within the tissue. xl50. b. This photomicrograph obtained at a higher magnification shows the brown adipose cells with round and often cen

Treating Lipomas Naturally

trally located nuclei. Most of the cells are polygonal and are closely packed, with numerous lipid droplets. In some cells, large lipid droplets displace nuclei toward the cell periphery. A network of collagen fibers and capillaries surrounds the brown adipose cells. x320.

The study of the numerous varieties of benign and malignant adipose tissue tumors provides further insight into, and confirmation of, the sequence of adipose tissue differentiation described above. Adipose tissue tumors are classified by the morphology of the predominant cell In the tumor (Fig. 6.5). As with epithelial tumors and tumors of fibroblast origin, the variety of adipose tissue tumors reflects the normal pattern of adipose tissue differentiation. That is, discrete tumor types can be described that consist primarily of cells resembling a given stage in adipose tissue differentiation. The most common adipose tissue tumor is the lipoma. It is more common than all other soft tissue tumors combined. Lipomas are usually found in subcutaneous tissues in middle-aged and elderly individuals. Although Figure 6.5 relates primarily to white adipose tissue tumors, tumors of brown adipose tissue are also found. Not surprisingly, these are called hibernomas.

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