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Cutaneous lymphoma is a type of non‑Hodgkin lymphoma that starts in the skin, and its symptoms often look like common skin problems such as eczema or psoriasis. Many people live with these changes for months or years before getting a correct diagnosis, so it is important to know what to watch for and when to see a specialist.
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How Cutaneous Lymphoma Can Look on Your Skin
Cutaneous lymphoma usually shows up first on the skin and may change over time. Signs and symptoms can include:
- Red, pink, brown or darker patches that may be dry, scaly or itchy.
- Thicker, raised plaques that can feel rough or may crack or itch.
- Firm bumps or lumps (nodules or tumors) that can be the same color as your skin or red‑to‑purple.
- Rash‑like areas that do not go away with usual creams or treatments.
- Areas of lighter or darker skin, especially in people with darker skin tones.
These changes can appear anywhere on the body but are often found on the chest, back, buttocks or other areas usually covered by clothing.
Symptoms that May Change Over Time
Cutaneous lymphoma is often a chronic condition, and symptoms can evolve. These are symptoms that can change over time:
- Skin patches or plaques that get larger, thicker or appear in new areas.
- Itching that becomes more intense or widespread.
- Development of new bumps or tumors on top of older skin changes.
- Areas that start to hurt, bleed, crust or become infected.
Some people can also have swollen lymph nodes, fevers, night sweats, weight loss or fatigue, especially if the lymphoma spreads beyond the skin.
When a Rash Might Be More than Eczema or Psoriasis
Many people with cutaneous lymphoma are first told they have eczema, psoriasis or another common skin condition. However, it might be more than a rash if the following is true:
- If the skin condition does not improve with usual treatments or keeps coming back in the same place.
- If the pattern of your rash changes, if it looks different from past eczema or psoriasis flares, or if you develop firm bumps or tumors.
If you have a long‑lasting or changing rash and treatments are not helping, ask to see a dermatologist or cutaneous lymphoma specialist. A skin biopsy and expert review are often needed to make a diagnosis.
If You Notice These Signs
If you are worried about a rash or other skin changes:
- Take clear photos over time so you and your care team can see what is changing.
- Make a list of where the rash started, what it feels like and which treatments you have already tried.
- Ask your primary care provider or dermatologist whether you should be referred to a cutaneous lymphoma specialist.
At Fred Hutch, the Cutaneous Lymphoma Specialty Clinic brings together dermatologists, hematologist‑oncologists and other experts who can evaluate your symptoms, perform needed tests and work with you to plan next steps.