Adipose tissue, commonly known as fat, is a type of tissue in the body made up of cells called adipocytes. These cells store energy in the form of fat, help cushion and protect internal organs, and provide insulation to maintain body temperature. Adipose tissue plays an essential role in overall health and metabolism.
Where is adipose tissue commonly found?
Adipose tissue is found throughout the body but tends to gather in specific areas, including under the skin (subcutaneous fat), around internal organs (visceral fat), in the abdomen, hips, thighs, and buttocks. It also provides protective padding around vital organs such as the kidneys and heart.
What does adipose tissue look like under the microscope?
Under the microscope, adipose tissue appears as large, clear cells with a thin border surrounding them. Each adipocyte is filled almost entirely with a single large droplet of fat, pushing the nucleus (the cell’s control center) to one side. Because fat does not stain easily with standard dyes, adipocytes appear empty or clear. These cells are typically grouped together in clusters, creating a distinctive honeycomb or bubble-like appearance.
Tumors made up of adipose tissue
Tumors composed primarily of adipose tissue are called lipomas if benign (noncancerous) or liposarcomas if malignant (cancerous). Lipomas are common, slow-growing lumps usually found just beneath the skin. They are soft, painless, and typically do not require treatment unless they cause discomfort or cosmetic concerns. Liposarcomas, however, are rare malignant tumors that can grow deep within the body, such as in the abdomen or thigh, and usually require surgical treatment along with other therapies.
We are proud to partner with:
Our work is generously supported by:
