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Plasma Cell Neoplasms (Including Multiple Myeloma) Treatment (PDQ®): Treatment - Health Professional Information [NCI] - Treatment for Extramedullary Plasmacytoma

Treatment Options for Extramedullary Plasmacytoma

Treatment options for extramedullary plasmacytoma include the following:

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  1. Radiation therapy to the isolated lesion with fields that cover the regional lymph nodes, if possible.[1,2]
  2. In some cases, surgical resection may be considered, but it is usually followed by radiation therapy.[2]
  3. If the monoclonal (or myeloma) protein (M protein) persists or reappears, the patient may need further radiation therapy. In some patients, the plasmacytoma may shrink, but not disappear, and the M protein persists. These types of patients should be followed closely. Surgery should be performed if the plasmacytoma is in a site where it can be removed easily (e.g., in the tonsil); the M protein may disappear from the blood or urine. In other cases, persistence or an increasing M protein may herald progression to multiple myeloma.
  4. Chemotherapy is required if the disease progresses and causes symptoms.

Patients with isolated plasma cell tumors of soft tissues, most commonly occurring in the tonsils, nasopharynx, or paranasal sinuses, should have skeletal x-rays and bone marrow biopsy (both of which should be negative) and evaluation for M protein in serum and urine.[1,2,3,4]

About 25% of patients have serum and/or urine M protein; this should disappear following adequate radiation.

Extramedullary plasmacytoma is a highly curable disease with progression-free survival ranging from 70% to 87% at 10 to 14 years after treatment with radiation therapy (with or without previous resection).[1,2,5]

Current Clinical Trials

Check for U.S. clinical trials from NCI's list of cancer clinical trials that are now accepting patients with extramedullary plasmacytoma. The list of clinical trials can be further narrowed by location, drug, intervention, and other criteria.

General information about clinical trials is also available from the NCI Web site.

References:

  1. Tsang RW, Gospodarowicz MK, Pintilie M, et al.: Solitary plasmacytoma treated with radiotherapy: impact of tumor size on outcome. Int J Radiat Oncol Biol Phys 50 (1): 113-20, 2001.
  2. Alexiou C, Kau RJ, Dietzfelbinger H, et al.: Extramedullary plasmacytoma: tumor occurrence and therapeutic concepts. Cancer 85 (11): 2305-14, 1999.
  3. Meis JM, Butler JJ, Osborne BM, et al.: Solitary plasmacytomas of bone and extramedullary plasmacytomas. A clinicopathologic and immunohistochemical study. Cancer 59 (8): 1475-85, 1987.
  4. Soesan M, Paccagnella A, Chiarion-Sileni V, et al.: Extramedullary plasmacytoma: clinical behaviour and response to treatment. Ann Oncol 3 (1): 51-7, 1992.
  5. Strojan P, Soba E, Lamovec J, et al.: Extramedullary plasmacytoma: clinical and histopathologic study. Int J Radiat Oncol Biol Phys 53 (3): 692-701, 2002.

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Public Information from the National Cancer Institute

    Last Updated: September 04, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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