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Questions and discussion to help forum members determine if they may have multiple myeloma, smoldering multiple myeloma, or MGUS.

Lab report says possible MGUS

by chelle151 on Mon Mar 12, 2018 11:59 am

Hello,

I have been seeing a haematologist since last August 2017. I've seen him twice because blood tests kept coming back with high WBC and low red bloods. Kept getting water infections aching all over like flu; bones, arms, upper neck/back, and lower back and hips. Feel like tooth ache in them, not nice. Have fibromyalgia for a few years now but this seem different I think.

Anyway, had some results back

Kappa level 39.64 mg/l
Lambda level 7.35 mg/l
Kappa/lambda ratio 5.393

Do these results mean I have MGUS?

MGUS is mentioned on the results with amyloidosis, This is why i was sent to a specialist.

Second lot of tests showed free light chains high but a little lower than the ones above. Also

IgG 5.64 g/l
IgA 0.58 g/l
IgM 0.32 g/l

Decreased gamma globulins - no paraprotein detected
Serum total protein 72 g/l
Serum albumin 39 g/l
Serum globulin 33 g/l

Specialist says we are monitoring you, too early to say exactly what it could be. Next appointment is in July.

Thank you in advance.

chelle151
Name: michelle
Who do you know with myeloma?: no one
When were you/they diagnosed?: have not yet

Re: Lab report says possible MGUS

by Multibilly on Mon Mar 12, 2018 8:08 pm

Hi Michelle,

Welcome to the forum.

It would be helpful if you listed the reference ranges for each of the lab values you listed. But the major thing that jumps out at me is that no paraprotein was detected. What will be key is whether they also ran an "immunofixation" test and what the results of that test were. The immunofixation test will tell you if your excess kappa level is monoclonal (cancerous) in nature and therefore whether MGUS or amyloidosis might be in play.

The "no paraprotein detected" comment looks to be from a serum electrophoresis test and only tells you that you have no measurable monoclonal immunoglobulins (IgG, IgA, IgM). But that electro­phoresis test doesn't rule out the possibility that you may have monoclonal free light chains.

Without knowing your reference ranges, it would appear that all of your immunoglobulins (IgG, IgA, IgM) may also be suppressed. This is a condition known as immunoparesis and can be a result of either MGUS or amyloidosis.

It's curious that "amyloidosis" was mentioned as a possibility at this stage. Did you have a 24-hour urine test, or any sort of tissue biopsy. or are your exhibiting some symptoms that would have led the pathologist to suggest that as a possibility?

Multibilly
Name: Multibilly
Who do you know with myeloma?: Me
When were you/they diagnosed?: Smoldering, Nov, 2012

Re: Lab report says possible MGUS

by chelle151 on Tue Mar 13, 2018 6:50 am

Hi Multibilly,

Thank you for replying. This is everything I think.

Serum total 72 g/l (60-80)
Serum albumin 39 g/l (35-50)
Serum globulin 33 g/l (22-43)

IgG 5.64 g/l (6.00- 16.00)
IgA 0.58 g/l (0.80- 2.80)
IgM 0.32 g/l (0.50- 1.90)

Says "light chain level" antigen excess causes some immunoassays to underestimate very high con­cen­trations of antigen, significant light chain abnormality light chain MGUS amyloidosis and other light chain disorders possible. See haematologist.

Serum kappa light chain level 39.64 mg/l (3.30-19.40)
Serum lambda light chain level 7.35 mg/l (5.70-26.30)
Kappa: lambda ratio light chain 5.393 mg/l (0.260- 1.650)

Suggested Bence-Jones urine test, not had results yet.

But for about a year I have had protein levels in urine tests every month Not had a 24-hour urine test yet.

Okay, think that's everything I can tell you for now.

Thank you for helping me.

chelle151
Name: michelle
Who do you know with myeloma?: no one
When were you/they diagnosed?: have not yet

Re: Lab report says possible MGUS

by Multibilly on Tue Mar 13, 2018 8:10 am

OK, so I would recommend that you ask the doctor for a serum immunofixation test and a 24-hour urine test (also known as a Bence-Jones urine test) the next time you get tested. That will help narrow down the possibilities of why your IgG, IgA, IgM and kappa free light chain levels are out of whack.

Multibilly
Name: Multibilly
Who do you know with myeloma?: Me
When were you/they diagnosed?: Smoldering, Nov, 2012

Re: Lab report says possible MGUS

by chelle151 on Tue Mar 13, 2018 9:40 am

Hi,

Thank you for the quick reply. Very helpful. I will do that.

Thanks,
Michelle

chelle151
Name: michelle
Who do you know with myeloma?: no one
When were you/they diagnosed?: have not yet

Re: Lab report says possible MGUS

by Anon25 on Tue Mar 13, 2018 6:44 pm

Hi Michelle,

You may also wish to request that your IgD level be tested. It's rare to measure a person's IgD, but doing so could help narrow things down.

The reason I mention this is I have IgD multiple myeloma. During my initial diagnosis (2011), the IgG, IgA, and IgM levels were suppressed (below the normal range).

Take Care

Anon25

Re: Lab report says possible MGUS

by chelle151 on Tue Mar 20, 2018 9:58 am

Hi Anon25,

Thanks for the tip. I will look into it. Hope you're ok, or at least feeling better.

Michelle

chelle151
Name: michelle
Who do you know with myeloma?: no one
When were you/they diagnosed?: have not yet


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