Aggressive NK-cell leukemia

Aggressive NK-cell leukemia
Natural killer cell
Synonyms	N/A
Pronounce	N/A
Specialty	N/A
Symptoms	Fever, weight loss, night sweats, hepatosplenomegaly, lymphadenopathy
Complications	Hemophagocytic lymphohistiocytosis, multi-organ failure
Onset	Typically in young adults
Duration	Acute
Types	N/A
Causes	Genetic mutations, Epstein-Barr virus
Risks	Immunosuppression, Asian descent
Diagnosis	Blood test, bone marrow biopsy, immunophenotyping
Differential diagnosis	T-cell leukemia, B-cell lymphoma, infectious mononucleosis
Prevention	N/A
Treatment	Chemotherapy, hematopoietic stem cell transplantation
Medication	N/A
Prognosis	Poor
Frequency	Rare
Deaths	N/A

Aggressive NK-cell leukemia
ICD-10
ICD-9
DiseasesDB
MedlinePlus
eMedicine
MeSH ID

Aggressive NK-cell leukemia is a rare and rapidly progressing form of leukemia characterized by the proliferation of natural killer cells. It is considered a subtype of large granular lymphocyte leukemia.

Signs and Symptoms

Patients with aggressive NK-cell leukemia often present with systemic symptoms such as fever, weight loss, night sweats, and fatigue. Other symptoms may include hepatosplenomegaly and lymphadenopathy.

Complications

This condition can lead to severe complications, including hemophagocytic lymphohistiocytosis (HLH), a life-threatening condition characterized by excessive immune activation and organ failure.

Causes

The exact cause of aggressive NK-cell leukemia is not well understood, but it is often associated with genetic mutations and viral infections, particularly the Epstein-Barr virus (EBV).

Diagnosis

Diagnosis typically involves a combination of blood tests, bone marrow biopsy, and immunophenotyping to identify the abnormal NK cells. Cytogenetic analysis may also be performed to detect specific genetic abnormalities.

Treatment

Treatment options are limited and often include chemotherapy and stem cell transplant. The prognosis for aggressive NK-cell leukemia is generally poor, with a high rate of relapse and resistance to treatment.

Epidemiology

Aggressive NK-cell leukemia is a rare disease, with a higher prevalence in East Asia. It affects both children and adults, with a slight male predominance.

See Also

• Leukemia
• Natural killer cell
• Epstein-Barr virus

External Links

• National Cancer Institute - NK-cell leukemia treatment