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Living with Plasmacytoma

A cancer of plasma cells that forms a single mass, either in bone or in soft tissue such as the head and neck.

Understanding Plasmacytoma

Plasmacytoma is a cancer that begins in plasma cells, white blood cells that make antibodies.

It shows up as a single mass of abnormal plasma cells and makes up about 5% of all plasma cell cancers. The two types are plasmacytoma of the bone and extramedullary plasmacytoma of the soft tissues. Extramedullary types usually occur in the head and neck, are more common in men, and are usually diagnosed around age 50.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet.

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include blood and bone marrow specialists, brain and nervous system specialists and cancer specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    The Foundation for Peripheral Neuropathy may keep lists of experts for this condition.

Care & treatment

Care team
Blood and bone marrow specialists (hematologists); Brain and nervous system specialists (neurologists); Cancer specialists (oncologists)
Expert care
Expert lists: The Foundation for Peripheral Neuropathy
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with American Cancer Society and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Is my plasmacytoma in the bone or in soft tissue?
What treatment options are available?
How will I be monitored for other plasma cell conditions?

Quick facts

Symptoms usually startAdult

GARD doesn't describe a cause for this condition yet.

NeurologicalBlood

Also known as: plasmacytoma - disorder; solitary myeloma; solitary plasmacytoma

Patient organizations

Source: NIH GARD · PlasmacytomaGARD ID 13446 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Plasmacytoma.

Explore the Plasmacytoma blog

Explore research for Plasmacytoma

Explore actively recruiting Plasmacytoma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Plasmacytoma with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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I can help you find recruiting Plasmacytoma studies. Enter a ZIP code, address or city below and I'll look within 50 miles.

Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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