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A lipoma is a benign tumor made of fat tissue. [1] They are generally soft to the touch, movable, and painless. [ 1 ] They usually occur just under the skin, but occasionally may be deeper. [ 1 ]
Lipomas affect about 1% of the population, with no documented sex bias, and about 1 in every 1000 people will have a lipoma within their lifetime. [25] [26] The cause of lipomas is not well defined. Genetic or inherited causes of lipomas play a role in around 2-3% of patients. [25]
Both tests are useful to establish the diagnosis of multiple symmetric lipomatosis, although magnetic resonance imaging provides more details and may be used when lipomas are large, deep, or have infiltrated muscle fibers or nerves. In some cases, a biopsy of the lipomas may be necessary to confirm the diagnosis. [3]
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Taking a biopsy of the mass is not necessary because these are distinct enough to make a confident diagnosis only from the use of medical imaging, like an MRI. However, if a biopsy is taken, it will show an abundance of mature fat cells surrounded by fibrous connective tissue. [ 5 ]
The hematology specialist conducted pet scans, CT scans, and a bone marrow biopsy (during which they chip a piece of bone marrow off of your back while you’re awake—it involves a huge needle ...
“Getting a biopsy is not pleasant, and 75% of all the biopsies we do turn out to be nothing. You stick a needle in the breast and sometimes you’ll see these little calcifications that are ...
This excisional biopsy is often done with a narrow surgical margin to make sure the deepest thickness of the melanoma is given before prognosis is decided. However, as many melanoma-in-situs are large and on the face, a physician will often choose to do multiple small punch biopsies before committing to a large excision for diagnostic purpose ...