What are the symptoms of Human T-Lymphotropic Virus (HTLV)?

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From the Guidelines

Symptoms of T-lymphocytic viruses, such as Human T-cell Leukemia Virus (HTLV), typically include fever, fatigue, swollen lymph nodes, night sweats, and weight loss, with more severe manifestations including skin rashes, neurological problems, and certain types of cancer like adult T-cell leukemia/lymphoma (particularly with HTLV-1) 1.

Key Symptoms

  • Fever
  • Fatigue
  • Swollen lymph nodes
  • Night sweats
  • Weight loss
  • Skin rashes
  • Neurological problems (such as weakness, numbness, or cognitive changes)
  • Opportunistic infections
  • Certain types of cancer like adult T-cell leukemia/lymphoma (particularly with HTLV-1)

Disease Association

HTLV-I has been definitively associated with two diseases: adult T-cell leukemia/lymphoma (ATL) and a chronic degenerative neurologic disease, HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) 1.

HTLV-II Infection

HTLV-II infection has not been clearly associated with any diseases, although rare cases of HAM/TSP-like neurologic illnesses and other conditions have been reported in HTLV-II-infected persons 1.

Importance of Early Diagnosis

Early diagnosis through blood tests is essential, as these conditions require long-term management under specialized medical care to prevent complications and disease progression 1.

From the Research

Symptoms of T Lymphocytic Virus

The symptoms of T lymphocytic virus, also known as Human T-lymphotropic virus type 1 (HTLV-1), can vary depending on the disease it causes. Some of the symptoms include:

  • Spastic paraparesis, a condition characterized by stiffness and weakness in the legs [ 2 ]
  • Lower limb sensory disturbance, which can cause numbness, tingling, or pain in the legs [ 2 ]
  • Bladder/bowel dysfunction, which can cause problems with urination or bowel movements [ 2 ]
  • Organomegaly, which is the enlargement of organs such as the liver or spleen [ 3 ]
  • Skin lesions, which can appear as rashes or sores on the skin [ 3 ]
  • High white blood cell count, which can indicate an infection or inflammation [ 3 ]
  • Hypercalcaemia, which is an elevated level of calcium in the blood [ 3 ]
  • Infective dermatitis of children, a condition characterized by skin inflammation and infection [ 4 ]
  • Uveitis, which is inflammation of the eye [ 4 ]

Disease Associations

HTLV-1 has been associated with several diseases, including:

  • Adult T-cell leukemia/lymphoma (ATL), a type of blood cancer [ 3, 5, 6, 4 ]
  • HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP), a chronic inflammatory disease of the central nervous system [ 2, 5, 4 ]
  • HTLV-I associated myelopathy, a chronic neurodegenerative disorder [ 4 ]

References

Guideline

Guideline Directed Topic Overview

Dr.Oracle Medical Advisory Board & Editors, 2025

Research

Human T-lymphotropic virus type I infection.

Lancet (London, England), 1999

Research

Treatment with a combination of zidovudine and alpha-interferon in naive and pretreated adult T-cell leukemia/lymphoma patients.

Journal of acquired immune deficiency syndromes and human retrovirology : official publication of the International Retrovirology Association, 1996

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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