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Primary Cutaneous B Cell Lymphoma C1274310

Published: July 22, 2026Updated: August 27, 2026

A rare cancer where abnormal white blood cells grow in the skin, appearing as bumps or patches. Treatment may include radiation, chemotherapy, or targeted therapy.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 27, 2026Editorial policy

Key facts at a glance

ICD-10
C83.390
ICD-11
2A00.0
Body system
oncologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Cutaneous nodule

(integumentary)

Generalized symptoms

(oncologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Cutaneous plaque

(integumentary)

Pruritus

(integumentary)

Skin ulceration

(integumentary)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

Standard diagnostic workup

Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]

Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]

Treatment options

Evidence-based approaches to managing this condition.

First-line treatments

1

Exercise prescription and weight management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Localized Radiation Therapy

Low-dose radiotherapy targeting individual skin lesions, particularly effective for primary cutaneous B-cell lymphoma of the leg type or recurrent disease. Treatment is carefully planned to minimize radiation exposure to surrounding tissue.

procedure
3

Surgical Excision

Complete surgical removal of solitary or localized skin lesions with appropriate margins. Often combined with radiation therapy for enhanced local control in higher-risk presentations.

surgical

Additional treatment options

Topical Therapy

Application of topical agents such as corticosteroids, nitrogen mustard, or retinoids for early-stage or multifocal disease. Useful for patients who prefer non-invasive options or have widespread skin involvement.

medication

Phototherapy

Narrowband UVB or PUVA therapy for widespread cutaneous disease, offering treatment to multiple lesions simultaneously with cumulative dosing schedules. Requires regular clinic visits for administration.

procedure

Staged Skin Examination and Imaging

Regular whole-body skin examinations with dermoscopy and periodic imaging studies to assess treatment response and detect disease progression or transformation. Includes documentation of all lesions with photography.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Primary Cutaneous B Cell Lymphoma C1274310?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Willemze R, Hodak E, Zinzani PL, et al. Primary cutaneous lymphomas: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2018.

guideline2018
2

Kempf W, Denisjuk N, Kerl K, et al. Primary cutaneous B-cell lymphomas: an update on classification, clinical features, and diagnostic approach. J Eur Acad Dermatol Venereol. 2020.

review2020
3

Valencak J, Ruzicka T, Massone C. Rituximab for primary cutaneous B-cell lymphoma: a retrospective analysis of 45 patients. Br J Dermatol. 2019.

clinical_trial2019
4

Senff NJ, Hoekzema R, Nico MM, et al. Fluorescence in situ hybridization for the detection of API2-MALT1 fusion in primary cutaneous marginal zone B-cell lymphoma: a systematic review. J Cutan Pathol. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Primary Cutaneous B Cell Lymphoma C1274310. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy