Plasmacytoma

Plasmacytoma is a type of cancer that begins in the plasma cells, which are a type of white blood cell found in the bone marrow. Plasma cells play a crucial role in the immune system by producing antibodies to help fight infections.

Types of Plasmacytoma

There are two main types of plasmacytoma:

  • Solitary plasmacytoma of bone: This type of plasmacytoma occurs in the bone and is a single tumor. It can occur in any bone, but it most commonly affects the spine, pelvis, ribs, or skull.
  • Extramedullary plasmacytoma: This type of plasmacytoma occurs outside of the bone marrow, typically in the soft tissues of the body, such as the lungs, liver, or lymph nodes.

Symptoms

The symptoms of plasmacytoma can vary depending on the location and size of the tumor. Common symptoms include:

  • Pain in the affected bone or area
  • Weakness or fatigue
  • Weight loss
  • Anemia (low red blood cell count)
  • Recurrent infections
  • Numbness or tingling in the extremities (if the tumor is pressing on a nerve)

Diagnosis

Diagnosing plasmacytoma typically involves:

  • Imaging tests: X-rays, CT scans, or MRI scans to visualize the tumor and determine its location and size.
  • Bone marrow biopsy: A procedure in which a sample of bone marrow is removed and examined for abnormal plasma cells.
  • Blood tests: To check for elevated levels of certain proteins (such as monoclonal protein) that are produced by the tumor.

Treatment

Treatment for plasmacytoma depends on the location, size, and type of tumor, as well as the patient's overall health. Common treatment options include:

  • Radiation therapy: To shrink or eliminate the tumor.
  • Surgery: To remove the tumor and surrounding tissue.
  • Chemotherapy: To kill cancer cells that may have spread to other parts of the body.
  • Targeted therapy: To specifically target and kill cancer cells.

Prognosis

The prognosis for plasmacytoma varies depending on the type and location of the tumor, as well as the patient's overall health. In general, solitary plasmacytoma of bone has a relatively good prognosis, with a 5-year survival rate of around 70-80%. Extramedullary plasmacytoma has a poorer prognosis, with a 5-year survival rate of around 40-50%.

Article last updated on: 15th June 2025.
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