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Doctor insights on: Lipoma Ultrasound

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Can a liposarcoma appear as a lipoma on ultrasound? And do they cause sharp pain? Can they occur in the arm?

Can a liposarcoma appear as a lipoma on ultrasound? And do they cause sharp pain? Can they occur in the arm?

No pain: Liposarcomas can arise where ever fat is present in the abdomen and extremities. When malignant transformation occurs it does not do so uniformly throughout a relatively large lesion. To be sure of pathology whole lesion should be resected and one can find lipoma with select areas of malignant transformation as well as myxomatous components. Pain is rarely associated with lipoSa. Sono of no value ...Read more

Dr. Michael Gabor
2,271 Doctors shared insights

Sonogram (Definition)

An ultraound, also known as a sonogram, is a painless and relatively inexpensive imaging test that utilizes sound waves instead of ionizing radiation. There are no side effects. Ultrasound can give us two-dimensional, and in some applications three-dimensional, images of structures and organs in virtually any part of the body. In addition to diagnostic uses, such as evaluating abnormalities in the abdomen, pelvis, and breast, ultrasounds are commonly used to guide needle and catheter placement in a variety of surgical ...Read more


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How accurate is ultrasound in distinguishing between lipoma and soft tissue sarcoma?

How accurate is ultrasound in distinguishing between lipoma and soft tissue sarcoma?

Other tests better: A precise diagnosis of a malignant soft tissue tumor typically cannot be made with ultrasound. Low grade sarcomas may not be able to be differentiated from lipomas on US. Definitive diagnosis can only be made with biopsy. If you have a concern, see your surgeon for consideration of excision or biopsy. ...Read more

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Ultrasound said lump in arm9 tripled in size in 2 /3wks is lipoma. Now I'm getting sharp pain in the lump. Is this normal?

Ultrasound said lump in arm9 tripled in size in 2 /3wks is lipoma. Now I'm getting sharp pain in the lump. Is this normal?

No: Lipoma don't cause pain. Did you bump it and often fat necrosis can hurt. Please see your physician this needs to be looked at. ...Read more

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I have what appears to be a lipoma in my right rib area according to the ultrasound but now I noticed one on my left side. They are both painful?

I have what appears to be a lipoma in my right rib area according to the ultrasound but now I noticed one on my left side. They are both painful?

Have it examined.: Lipomas are quite frequent and can happen almost everywhere on the body. Usually not painful but sometimes (especially if on top of the bone) may be quite painful and uncomfortable. They can be easily removed surgically. Just have it evaluated by a surgeon. The smaller the lipoma the easier it is to remove it, the smaller the scar. ...Read more

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What is the probability that a lipoma would be labeled as that in ultrasound when really it's a tumor that needs to be biopsied?

What is the probability that a lipoma would be labeled as that in ultrasound when really it's a tumor that needs to be biopsied?

Not likely: An ultrasound is quite accurate in that assessment when combined with physical exam and site of origin. Is lipoma in the breast? ...Read more

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Can a intramuscular bicep lesion that appears heterogeneous on an ultrasound still be a lipoma? What else could it be?

Can a intramuscular bicep lesion that appears heterogeneous on an ultrasound still be a lipoma? What else could it be?

Ultrasound: Is limited in its ability to characterize soft tissue masses. An MRI with contrast is the best study short of biopsy to evaluate whether this lesion is a benign lipoma or something else. The contrast allows the radiologist to see if any part of the presumed fatty mass enhances (as may occur with liposarcomas). ...Read more

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Hi, I have a lump in my sternal notch that is pretty firm. Ultrasound says "may" be a lipoma, watch for interval growth. Its bigger. Thoughts?

Hi, I have a lump in my sternal notch that is pretty firm. Ultrasound says "may" be a lipoma, watch for interval growth. Its bigger. Thoughts?

Doubt it: Lipoma are usually soft specially in this location

It is hard for me to say it is not without feeling it or seeing it.

I am depending on the location and description.

there is higher possibility that it is part of the sternum than it is a lipoma.

any way if it is too visible or causing you a problem you can ask to have it removed. ...Read more

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I have a possible deep lipoma on lower back near spine. It is palpable, but it did not show up on an ultrasound. Is it safe to say it isn't cancerous?

I have a possible deep lipoma on lower back near spine. It is palpable, but it did not show up on an ultrasound. Is it safe to say it isn't cancerous?

No: An ultrasound can not differentiate the fat that makes up a lipoma from the surrounding fatty tissues under the skin and will not definitively be able to differentiate a cancer from a non-cancer. If the lump is hurting then have it removed and it should be sent for pathological analysis. That will tell you if it is a cancer (Malignancy) or not. A true lipoma is not typically dangerous. ...Read more

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Ultrasound report of popliteal fossa showed lipomas. Is this unusual? Differential diagnosis?

Ultrasound report of popliteal fossa showed lipomas. Is this unusual? Differential diagnosis?

Popliteal Lipoma: A lipoma is an extremely common benign lipid (fat) tumor. It can easily be identified on exam & verified by ultrasound. Lipomas can be seen anywhere on the body under the skin where there is fat. Malignant transformation is extremely rare. Lipomas formed from liponeogenesis, usually seen after a blunt trauma, has a higher incidence of liposarcoma transformation. Bakers cyst is not a lipoma. ...Read more

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Hard palpable lump next to elbow. Had ultrasound today 4.8cm wide, 1.38 CM deep. Sonographer said it wasn't bursitis or lipoma?

Hard palpable lump next to elbow. Had ultrasound today 4.8cm wide, 1.38 CM deep. Sonographer said it wasn't bursitis or lipoma?

Large lump: I would see a surgeon at this point for further evaluation and consider an MRI or biopsy, if warranted. ...Read more

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Is there any way to determine whether a lump in thigh is lipoma or malignant by physical exam or ultrasound? If it's large (2 in), more suspicious?

Is there any way to determine whether a lump in thigh is lipoma or malignant by physical exam or ultrasound? If it's large (2 in), more suspicious?

Most likely benign: One can usually determine with reasonable accuracy between a benign lipoma and malignancy on a routine physical exam. Most should be removed and analyzed by a pathologist to be sure. If there is concern, an ultrasound or MRI can be helpful but total excision is usually the best approach. ...Read more

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I have 3.1cm growth in glute. After ultrasound docfound cystic and solid component that could be atypical lipoma or hematoma. Could this be sarcoma?

I have 3.1cm growth in glute. After ultrasound docfound cystic and solid component that could be atypical lipoma or hematoma. Could this be sarcoma?

Unlikely: While it is possible, it is very unlikely. Options include repeat imaging in 3-6 months, or surgical removal. Ask your doctor what is best for you. It's important to realize however that nobody can see the future, and any test can be incorrect. Go with your gut feeling after a thoughtful discussion with your doc. Hope this helps! ...Read more

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How can a general surgeon know if a mass on the midline upper back is lipoma or old muscle just by feeling it? Can an ultrasound determine which?

How can a general surgeon know if a mass on the midline upper back is lipoma or old muscle just by feeling it? Can an ultrasound determine which?

Depends on: The case, but usually yes. Ultrasound maybe. Better test is MR, but it might not be necessary, because an experienced surgeon can usually tell. But a lot depends on size, consistency, age, onset, etc. Ask for a second opinion if you are uncomfortable with first surgeon's opinion. ...Read more

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Had appendectomy 3 weeks ago. Now having upper outer thigh pain. Two painful lumps. Ultrasound was done. Doc said lipoma. Is sudden pain A symptom?

Here are some...: Which thigh do you have pain? How has it begun, evolved thus far? In a clinical profile 3 weeks after appendectomy, it is still reasonable to consider if such pain is procedure- or disease-related. Seeing lipoma in groins on ultrasound is common. So, ask and work withe the surgeon for individual detail timely. ...Read more

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Lump in thigh 5cmx2cmx? Deep. Pain when walking but not on palpitation. Doc arranging ultrasound. Is it lipoma or more serious?

See a surgeon: Usually lipomas are fairly superficial, painless, and relatively soft. If the mass is deeper and firmer, this can be a muscle or bone tumor, some are benign and some are not. If this is the case, you may need a ct or MRI to get a better idea of it's relationship to other structures. If there is a concern this is sarcoma, you should see a surgical oncologist, as the correct removal is critical. ...Read more

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Dear doctors, I recently noticed a swelling in my armpit, I had CT scan and ultrasound. Doctors said its not lipoma, can you help me and advise me?

Dear doctors, I recently noticed a swelling in my armpit, I had CT scan and ultrasound. Doctors said its not lipoma, can you help me and advise me?

Swelling in armpit: This is very difficult to answer without the ability to visually examine and touch your underarm. The most common abnormalities of the underarm can be divided into those that are deep under the skin and those that are on the surface. Those that are under the skin can include enlarged lymph nodes, epidermoid cysts, or some type of ectopic breast tissue. Lipoma would fit this category. On the surface swelling is usually related to the sweat glands or hair follicles in the form of folliculitis boils or hidradenitis. ...Read more

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Lipomas in right popliteal fossa, first pain & bruising, then noticed lump. Diagnosed via ultrasound. Now same thing, same location, left leg. Normal?

Lipomas in right popliteal fossa, first pain & bruising, then noticed lump. Diagnosed via ultrasound. Now same thing, same location, left leg. Normal?

Lipoma: Lipomas are common, benign, fatty tumors or masses that can become symptomatic, especially in tight anatomic locations like joints and pressure points. Okay to check in with your doc about surgical removal and referral to local surgeon. ...Read more

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Breast exam by dr- "mass" found- painful did an excisional biopsy, not seen on mammo, ultrasound, had to go deeper possible lipoma-in anyway cancer?

Breast exam by dr- "mass" found- painful did an excisional biopsy, not seen on mammo, ultrasound, had to go deeper possible lipoma-in anyway cancer?

Possibly: Sounds like you had a palpable breast mass that wasn't identified by either mammogram or ultrasound. You have had biopsy, which will provide a definitive answer to the question of "what is it? " mammogram and ultrasound are good, but not perfect, at identifying areas of concern. Having a biopsy, as you did, is the only way to know for sure what this area is/was. ...Read more

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Burning pain left breast tissue and left upper back for 4 months. No rash, breast ultrasound came back normal. Only found a lipoma. What could it be?

Burning pain left breast tissue and left upper back for 4 months. No rash, breast ultrasound came back normal. Only found a lipoma. What could it be?

Many things: Things that come to mind thrombophlebitis of a lateral vein, expansion of the lipoma if it is large and possibly some neuropathic pain from stretching some of your nerves. If the pain does not improve with Ibuprofen or tylenol, (acetaminophen) you should probably see a breast surgeon. ...Read more

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Why my doc sent me to a surgeon with a mammogram with ill marginated focal asymmetry and sonogram with 2 lipomas no correlated with mammogram?

Why my doc sent me to a surgeon with a mammogram with ill marginated focal asymmetry and sonogram with 2 lipomas no correlated with mammogram?

It sounds like: The mammogram had a concerning finding that could not be visualized on the ultrasound. The lipomas are benign, but the mammographic abnormality needs further evaluation. You should talk to your doctor, but it sounds like he/she may be contemplating biopsy for the mammo finding. ...Read more

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Mammogram: ill marginated focal asymetry of low density in left axilary tail. Sonogram:2 lipomas not correlated to mammogram findings. Doc send me to surgeon, what should I expect? I'm scared!

Mammogram: ill marginated focal asymetry of low density in left axilary tail. Sonogram:2 lipomas not correlated to mammogram findings. Doc send me to surgeon, what should I expect? I'm scared!

See breast doctor: A breast surgeon will put all the pieces together to get the definitive answer or recommend a biopsy. He/She will get a history, perform breast exam and look at your films. If a biopsy is needed, make sure it is a needle biopsy and NOT a surgical biopsy. Just because you are seeing a surgeon, does not mean you need surgery. Good luck!! ...Read more

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Husband has 2-3 inch lump on thigh. It is rock hard, ultrasound revealed it could be a limpoma, but needs to be removed... Are they usually hard?

No: Lipomas are usually not hard, can feel firm but have some give to them. This is why it should be removed because until the pathologist evaluates the tissue you don't know the exact diagnosis. ...Read more

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Ultrasound suggested lipoma on abdominal wall. No growth. Surgery to have removed. Hurts when coughing, bending, moving. Is this normal? Sound cancerous? 3cm

Ultrasound suggested lipoma on abdominal wall. No growth. Surgery to have removed. Hurts when coughing, bending, moving. Is this normal? Sound cancerous? 3cm

Unlikely tobe Cancer: Lipomas are benign fatty tumors. They are not cancerous. But it is a good idea to get this lump removed and find out for sure what it is....just in case it is not a Lipoma. Just relax and wait to worry. ...Read more

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Left upper quad abdominal lump. Ultrasound diagnosed lipoma twice. No growth within year. Very painful when coughing or pressure applied. Cancer?

Be seen: A lipoma is a benign growth of fatty tissue and usually does not cause pain, nor is it usually tender. An ultrasound is not a sensative enough test to distinguish between a lipoma and other growths. So if you are having symptoms of pain, I would definitely get some further testing or even consider an excisional biopsy. ...Read more

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I have a lump on right side of left knee. Painful to touch. Can't tell if it is hard or not. Saw urgent care and dx with lipoma. Referred to surgery. Saw surgeon and Ultrasound ordered. Is that because she thinks it could be something more serious?

I have a lump on right side of left knee. Painful to touch. Can't tell if it is hard or not. Saw urgent care and dx with lipoma. Referred to surgery. Saw surgeon and Ultrasound ordered. Is that because she thinks it could be something more serious?

Reason for Ultrasoun: By serious I'm thinking you're referring to cancer or something that'll compromise use of the leg in the future, right? Let me reassure you the reason an ultrasound was ordered is to figure out whether it is something like a cyst or something like a benign fatty deposit. This will help them make a decision as to what steps to take. It's the most cost effective way to guide therapy. ...Read more

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Fatty lipoma on lower back shoit'd I get it removed?

Fatty lipoma on lower back shoit'd I get it removed?

Optional: Can watch or remove. These do not become cancerous. Remove if painful or enlarging. Many insurances consider this cosmetic surgery and may not cover its cost of removal. ...Read more

Dr. Mark Pack
936 Doctors shared insights

Benign Lipoma (Definition)

A clinical finding of benign ...Read more