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Neoplasm Of Mature T Cells Or Nk Cells C1334640

Published: July 22, 2026Updated: August 20, 2026

Cancers of mature immune cells including T cells and natural killer cells. Can cause skin lesions, lymph node swelling, or blood abnormalities. Treatment varies by subtype and may involve chemotherapy.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

Key facts at a glance

ICD-10
C80.1
ICD-11
2A00.0
Body system
oncologic
Severity
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Cutaneous skin lesions

(integumentary)

Generalized symptoms

(oncologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Lymphadenopathy

(lymphatic)

Generalized pruritus

(integumentary)

Systemic B symptoms (fever, night sweats, weight loss)

(systemic)

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

Chemotherapy regimen

Combination chemotherapy is the primary treatment approach for mature T-cell or NK-cell neoplasms, typically involving agents such as cyclophosphamide, doxorubicin, vincristine, and steroids to target malignant lymphocytes.

medication
2

Combination drug regimen with regular assessment

Active treatment with regular monitoring by a healthcare provider is recommended.

medication

Additional treatment options

Hematopoietic stem cell transplantation

Autologous or allogeneic stem cell transplant may be considered for eligible patients, particularly those with relapsed or refractory disease, offering potential for long-term remission.

procedure

Regular surveillance imaging and labs

Ongoing monitoring with PET-CT scans, blood work including CBC and LDH levels, and clinical assessments to evaluate treatment response and detect disease progression or relapse early.

monitoring

Infection prevention measures

Implementation of protective hygiene practices including hand hygiene, avoiding crowds during immunosuppression, and prophylactic antibiotics as prescribed to reduce infection risk during treatment.

lifestyle

Supportive integrative therapies

Acupuncture, massage therapy, and mind-body practices such as meditation may help manage treatment-related symptoms including fatigue, nausea, and pain while improving quality of life.

complementary

When to seek medical help

Recognize when you need immediate medical attention.

See a doctor within 24 hours

Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.

Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Neoplasm Of Mature T Cells Or Nk Cells C1334640?

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

general

Medication Comparisons

Compare medications used to treat Neoplasm Of Mature T Cells Or Nk Cells C1334640. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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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 20, 2026. · Read our editorial policy