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[Familial hemophagocytic lymphohistiocytosis]

N Vucković1, D Vucković, I Klem

  • 1Institut za patologiju, Medicinski fakultet Novi Sad.

Medicinski Pregled
|January 1, 1991
PubMed

Insights

This study details two children with familial hemophagocytic lymphohistiocytosis (HLH), a rare genetic disorder. Both presented with severe symptoms, highlighting the aggressive nature and genetic basis of this condition.

Area of Science:

  • Pediatric Hematology
  • Immunology
  • Genetics

Background:

  • Familial hemophagocytic lymphohistiocytosis (FHL) is a rare, life-threatening genetic disorder.
  • It is characterized by excessive immune activation and histiocyte proliferation.
  • Autosomal recessive inheritance patterns are common in FHL.

Observation:

  • This paper reports two cases of FHL within the same family, affecting siblings.
  • The first case involved a female infant presenting with hepatic failure and encephalopathy at 2.5 months.
  • The second case involved a male infant from a subsequent pregnancy who died within the first month with similar symptoms.

Findings:

  • Histological examination of both patients revealed diffuse proliferation of benign-appearing histiocytes.
  • These histiocytes contained numerous phagocytized erythrocytes, a hallmark of hemophagocytosis.
  • Infiltrates were observed in multiple organs, predominantly the spleen, liver, lymph nodes, and bone marrow.

Implications:

  • The findings underscore the genetic basis of FHL, suggesting autosomal recessive inheritance in this family.
  • The rapid progression and severe clinical manifestations highlight the critical need for early diagnosis and intervention.
  • Further research into the specific genetic defects and immune dysregulation in FHL is warranted for improved therapeutic strategies.

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