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Primary Cutaneous Marginal Zone B-cell Lymphoma – Symptoms, Treatment & Support

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Posted by Matthew O’Connor | Nov 9, 2023

What is Primary Cutaneous Marginal Zone B-cell Lymphoma?

Primary cutaneous marginal zone B-cell lymphoma (PCMZL) is a rare type of low-grade skin lymphoma. It belongs to the group of indolent (slow-growing) non-Hodgkin lymphomas and primarily affects the skin, with a tendency to avoid spreading to other parts of the body. Primary Cutaneous Marginal Zone B-cell Lymphoma arises from B lymphocytes found at the edge of the lymphoid follicles (marginal zones).

Symptoms

The symptoms of Primary Cutaneous Marginal Zone B-cell Lymphoma include:

  • Small, painless, reddish-purple nodules or plaques on the skin, often located on the arms, legs, or trunk.
  • Lesions may vary in size and number and can persist or recur over time.
  • Unlike other types of lymphoma, systemic symptoms like fever, night sweats, and weight loss are rare in PCMZL.

Disease Aetiology (Causes)

The exact cause of Primary Cutaneous Marginal Zone B-cell Lymphoma is not fully understood. Some cases are linked to chronic immune stimulation, possibly in response to an infectious agent or an autoimmune process. A history of skin inflammation or infection, such as Borrelia burgdorferi infection (in regions where Lyme disease is prevalent), may be a contributing factor.

Diagnosis

Diagnosing Primary Cutaneous Marginal Zone B-cell Lymphoma involves:

  • Skin Biopsy: Essential for a definitive diagnosis, involving examining a skin tissue sample under a microscope.
  • Immunophenotyping: This helps characterize the lymphoma cells and distinguish PCMZL from other lymphomas.
  • Blood Tests: To check for overall health and rule out infection or other conditions.
  • Imaging Studies: Generally not required, unless there is suspicion of systemic involvement.

Treatment

The treatment for PCMZL typically focuses on the skin lesions and may include:

  • Surgical Excision: Removal of the lesions, often used for isolated or few nodules.
  • Radiotherapy: Effective for localized lesions.
  • Corticosteroids: Topical or injected steroids can be applied directly to the lesions.
  • Rituximab: A monoclonal antibody therapy, particularly in cases of multiple or recurrent lesions.
  • Antibiotics: If there is evidence of associated infection (e.g., Borrelia burgdorferi).

What support can we give for Primary Cutaneous Marginal Zone B-cell Lymphoma?

Primary Cutaneous Marginal Zone B-cell Lymphoma is a rare cancer, meaning it is not as well-known as other forms of cancer. Without a Ribbon is an Australian organisation that provides support for individuals who suffer from rare cancers. So, we provide a designated platform for Warriors to obtain information specific to their Rare Cancer. We also provide annual opportunities for our Warriors to meet and learn from each other. If you suffer from rare cancer such as Primary Cutaneous Marginal Zone B-cell Lymphoma, we can help and support you through your journey thanks to the generous donations we receive. Click the link below to sign up and become a Warrior today!

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