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Macroglobulinemia Waldenstrom 1 C1835192

Published: July 22, 2026Updated: August 20, 2026

A rare blood cancer where the body makes too much of a certain protein, causing the blood to thicken. It can cause fatigue, bleeding, and nerve problems. Treatment may include chemotherapy and targeted therapies.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
C96.9
ICD-11
2A00.0
Body system
hematologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Hyperviscosity symptoms

!

Bleeding

Generalized symptoms

(hematologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Peripheral neuropathy

(hematologic)

Lymphadenopathy

(hematologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Anti-CD20 Monoclonal Antibody Therapy

Rituximab-based regimens targeting malignant B-cells to achieve disease control and reduce IgM levels.

medication
2

Medication management with follow-up

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Therapeutic Plasma Exchange

Apheresis procedure to rapidly reduce circulating IgM proteins and manage hyperviscosity syndrome symptoms.

procedure

Additional treatment options

Proteasome Inhibitor Therapy

Bortezomib-based regimens may be used for refractory disease or in combination strategies.

medication

Serum IgM and Viscosity Surveillance

Regular laboratory monitoring of immunoglobulin levels and clinical assessment for hyperviscosity symptoms.

monitoring

Hydration and Infection Prevention

Adequate fluid intake and infection precautions given immunocompromised state and treatment effects on immunity.

lifestyle

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Macroglobulinemia Waldenstrom 1 C1835192?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Macroglobulinemia Waldenstrom 1 C1835192. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy