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Old 11-10-2010, 06:37 PM   #1
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Hard painless lump on leg above left knee

My 16-year-old son has a hard painless lump about an inch above his left knee and slightly towards the interior. The skin above it looks fine. The lump is large. He has had it every since he can remember but never told anyone.

When he first told me I searched and searched to try and figure out what it was while waiting to get into see a doctor. I am posting this because I know what it is now, but I never came across the answer when I was searching and I want to help out others who may also be searching for hard painless lump on leg.

His bump was diagnosed as osteochondroma which is a benign condition. The lump is hard because it's bone - not a mass, not a lipoma. It was diagnosed with an x-ray. More males get it than females and it's usually dx between ages 10-20. It's just excess bone growing in the wrong direction and can happen in other areas too with other bones. The femur is the most popular.

 
Old 11-10-2010, 09:21 PM   #2
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Re: Hard painless lump on leg above left knee

Quote:
Originally Posted by Lourdes50 View Post
My 16-year-old son has a hard painless lump about an inch above his left knee and slightly towards the interior. The skin above it looks fine. The lump is large. He has had it every since he can remember but never told anyone.
I have this also!!!! This is the first case I have ever heard of that is nearly identical to mine! I was diagnosed with multiple exotosis at 13 because I had one of these bumps growing under a tendon in my right knee. It was excruciatingly painful when it was growing and then the only pain after it was there was a constant straining of my tendon whenever I did anything (I couldn't do a lot of physical activities because of the pain, didn't go to PE very much, etc.). I had that one removed a year after I was diagnosed, all the while I was in physical therapy.

The most unbelievable thing, to me, is that your son and I have the EXACT same bump on our left knees, and that happened to be the first one I ever noticed, thought I had it forever (and I probably have). Both of my pinkys are also have a curved bone where the last tip should be (example of malalignment of joints) and I was born that way.

When I was diagnosed they told that the bone growth 'should' stop after puberty...that IS NOT the case for me...I believe I just had another little bump come in on my foot and I'm almost 21. I have tons, possible over a hundred, of these bumps on my knees, ankles, shoulder, and hips.

This is supposed to be a hereditary disease, but I'm guessing neither you or his father have the disease? My parent's didn't have exostosis so I was termed a mutant

I wish I knew more about this disease myself, but I haven't seen a doctor about it in over 5 yrs...

I'm really intrigued to hear more about what you guys are doing about this and how it impacts your sons life. My experience has been pretty bad, I hope yours has been better. There's absolutely no pain...not the bump itself of course, but no muscle or joint aches and pains?

I'm so glad to have finally found someone experiencing what I live with

 
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Old 11-11-2010, 06:14 AM   #3
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Re: Hard painless lump on leg above left knee

Well, from what I have read there is a "multiple" version and a "solitary" version. The "multiple" one is hereditary. My son has a "solitary" one. He doesn't have it anywhere else on his body. He has no pain and can move around easily, which is probably why he never mentioned it.

We aren't doing anything about it except getting established with an orthopedic guy in case anything about the bump changes in the future. So, it's sorta a non-issue at this point.

 
Old 04-23-2011, 11:13 PM   #4
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Re: Hard painless lump on leg above left knee

Hey, I'm pretty sure what I have is an osteochondroma. I've thought it was an osteochondroma from various google searches but this is the first thing I've seen that is an exact match pretty much. I'm 20, I've always had a bump on my right leg above the knee cap but more leaning to the outside of my leg slightly. It's hard as a rock, could probably take a bullet for me, anyways...

I've always wanted to have it checked out but have been too scared plus it's always seemed like a bad time to lay it on my family because I'm still on their insurance, but I plan on getting it checked out soon enough because I'm tired of not knowing for sure what it is.

So anyways if you could answer a couple questions that would be awesome just to calm my nerves a bit.

I just want to know how did it all go? Did the fact that your son hid it for a while cause any complications with insurance? Also should I expect for my family to fork out a whole lot of money? Also, how long did the diagnosis take? Was it weeks for blood tests and such or was the x ray the end of the story?

Thanks in advance.

 
Old 05-01-2011, 05:54 PM   #5
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Re: Hard painless lump on leg above left knee

Quote:
Originally Posted by emmster View Post
Hey, I'm pretty sure what I have is an osteochondroma. I've thought it was an osteochondroma from various google searches but this is the first thing I've seen that is an exact match pretty much. I'm 20, I've always had a bump on my right leg above the knee cap but more leaning to the outside of my leg slightly. It's hard as a rock, could probably take a bullet for me, anyways...

I've always wanted to have it checked out but have been too scared plus it's always seemed like a bad time to lay it on my family because I'm still on their insurance, but I plan on getting it checked out soon enough because I'm tired of not knowing for sure what it is.

So anyways if you could answer a couple questions that would be awesome just to calm my nerves a bit.

I just want to know how did it all go? Did the fact that your son hid it for a while cause any complications with insurance? Also should I expect for my family to fork out a whole lot of money? Also, how long did the diagnosis take? Was it weeks for blood tests and such or was the x ray the end of the story?

Thanks in advance.
All my son had to have done was an x-ray. They did two pictures and the radiologist could diagnosis it from those x-rays. We got the dioagnosis the same day. There was no blood test. Later we saw an orthopedic surgeon and he said, "Keep it, don't keep it, it's up to you" and my son decided to keep it. It's a total non issue. We didn't even need to see the specialist, but I was just curious. I got those original x-rays on a CD and took it to the specialist so we didn't have additional x-ray expense. We have really good medical insurance - so it was just a couple of $20 co-pays and that's it. It didn't matter my son had hidden it from me as far as insurance coverage.

 
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