[Patient with intravascular lymphomatosis: Changes with time in concentrations of serum cytokines]

Akiko Aoki1, Shigeru Ono, Atsuhisa Ueda

  • 1First Department of Internal Medicine, Yokohama City University School of Medicine.

Insights

This study monitored serum cytokines in a patient with intravascular lymphomatosis (IVL). Elevated interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha) suggest cytokine levels may aid early IVL diagnosis.

Area of Science:

  • Oncology
  • Immunology
  • Pathology

Background:

  • Intravascular lymphomatosis (IVL) is a rare B-cell malignancy.
  • Clinical diagnosis of IVL is challenging due to nonspecific symptoms and laboratory findings.

Observation:

  • A 62-year-old male patient presented with malaise, arthralgia, and fever, initially diagnosed with dermatomyositis.
  • Initial treatment with corticosteroids and immunosuppressants provided temporary relief, but the patient's condition progressively worsened, leading to death ten months later.
  • Postmortem examination confirmed B-cell type intravascular lymphomatosis.

Findings:

  • Serum analysis revealed elevated levels of inflammatory cytokines, specifically interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha).
  • Interferon-gamma (IFN-y) levels were high only terminally, while interleukin-2 (IL-2) was undetectable.
  • Serum interleukin-4 (IL-4) showed a slight elevation. Elevated C-reactive protein (CRP) and hypoalbuminemia correlated with increased inflammatory cytokine levels.

Implications:

  • The dynamic changes and concentrations of serum cytokines, including IL-6, TNF-alpha, and IFN-y, may serve as crucial biomarkers for early IVL diagnosis.
  • Monitoring cytokine profiles could potentially improve diagnostic timelines for this challenging hematologic malignancy.

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