Abnormal Gamma Delta T Cell Proportion C5398018
An unusual proportion of a specific type of immune cell that helps defend the body against infections. This finding is usually detected through blood testing and may require further immune system evaluation.
Key facts at a glance
- ICD-10
- D89.9
- ICD-11
- 3A00.0
- Body system
- immunologic
- Severity
- mild
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Recurrent Infections
Frequent bacterial, viral, or fungal infections due to impaired immune function.
Seek immediate care if you develop high fever above 102°F, difficulty breathing, or signs of serious infection.
Autoimmune Symptoms
Development of autoimmune conditions such as autoimmune cytopenias or inflammatory conditions.
Seek immediate care if experiencing sudden severe symptoms, uncontrolled bleeding, or signs of autoimmune flare.
Fatigue
(constitutional)Persistent tiredness and lack of energy that interferes with daily activities.
Frequency: 70-80% of patients
Lymphadenopathy
(hematologic)Enlarged lymph nodes, typically in the neck, armpits, or groin area.
Frequency: 40-50% of patients
Skin Rash
(dermatologic)Various skin manifestations including eczema-like patches, lesions, or unusual skin growths.
Frequency: 30-40% of patients
Chronic Cough
(respiratory)Persistent cough lasting more than three weeks, often accompanied by recurrent respiratory infections.
Frequency: 25-35% of patients
Chronic Diarrhea
(gastrointestinal)Persistent loose or watery stools lasting more than two weeks, may indicate gut involvement.
Frequency: 15-20% of patients
Joint Pain
(musculoskeletal)Arthralgia or joint swelling affecting one or multiple joints, sometimes accompanied by morning stiffness.
Frequency: 10-15% of patients
Persistent Headache
(neurologic)Ongoing headaches that may range from mild to severe, sometimes associated with neurological changes.
Frequency: 5-10% of patients
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Immunologic laboratory surveillance
Regular blood testing to track gamma-delta T-cell proportions and function over time. Monitoring helps identify whether abnormalities are transient or persistent, guiding further investigation.
Lymphocyte immunophenotyping
Advanced flow cytometry analysis to characterize the specific subsets of gamma-delta T-cells present. This detailed profiling helps distinguish benign variations from pathological conditions requiring intervention.
Additional treatment options
Immunomodulatory therapy assessment
Comprehensive evaluation by an immunologist to determine if immune-modulating medications are appropriate based on the underlying cause of abnormal cell proportions. Treatment targets the specific mechanism driving the abnormality.
medicationInfection prevention strategies
Enhanced hygiene practices and vaccination to reduce infection burden, as viral and bacterial infections can transiently alter lymphocyte populations. Maintaining robust immune function through healthy habits supports normalization.
lifestyleVitamin D optimization
Assessment and correction of vitamin D deficiency, as this nutrient plays important roles in immune cell development and function. Adequate vitamin D levels support proper lymphocyte maturation and regulation.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Abnormal Gamma Delta T Cell Proportion C5398018?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Hayday AC. Gamma delta T cells and the lymphoid stress-surveillance response. Immunity. 2009;31(2):184-196.
International Union of Immunological Societies. Primary Immunodeficiency Disorders: A WHO Committee Report. J Clin Immunol. 2014;34(Suppl 1):S1-S50.
Girardi M. Immunosurveillance and immunopathology in gamma delta T-cell deficiency. J Invest Dermatol. 2006;126(5):1164-1172.
Parker CM, et al. Gamma delta T cell reconstitution following hematopoietic cell transplantation. Blood. 2011;118(21):2456.
American Academy of Allergy, Asthma & Immunology. AAAAI Practice Parameter on Immunodeficiency. J Allergy Clin Immunol. 2014;133(5):1096-1111.
Conley ME, et al. Primary Immunodeficiency Diseases: An Update on Classification from the International Union of Immunological Societies. J Clin Immunol. 2010;30(6):781-817.
Wang L, et al. T-cell subset abnormalities in autoimmune disease: A systematic review and meta-analysis. Autoimmun Rev. 2019;18(8):795-812.
Janeway CA, et al. Immunobiology: The Immune System in Health and Disease. 9th ed. Garland Science; 2016.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy