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Ocular and cerebral involvement in familial lymphohistiocytosis
Insights
Familial lymphohistiocytosis caused a 5-month-old infant girl's death. Autopsy revealed widespread central nervous system and ocular infiltration by inflammatory cells, including lymphocytes and histiocytes.
Area of Science:
- Pediatric Pathology
- Neuro-oncology
- Ophthalmology
Background:
- Familial lymphohistiocytosis (FLH) is a rare, life-threatening hyperinflammatory condition.
- Early diagnosis and treatment are crucial for FLH outcomes.
Observation:
- A 5-month-old infant girl presented with fatal familial lymphohistiocytosis.
- Post-mortem examination revealed extensive central nervous system (CNS) involvement.
- Ocular tissues also demonstrated significant cellular infiltration.
Findings:
- Widespread perivascular infiltration in the cerebral pia, arachnoid, white matter, deep gray matter, cerebellum, and brain stem.
- Infiltrating cells included lymphocytes, histiocytes, and macrophages exhibiting erythro- and lymphophagocytosis.
- Ocular findings included anterior uveal tract infiltration, inner retina involvement, and optic nerve infiltration.
Implications:
- This case highlights the severe CNS and ocular pathology associated with familial lymphohistiocytosis in infants.
- Understanding the distribution of cellular infiltration is vital for diagnosing and managing FLH.
- Further research into FLH pathogenesis may reveal targeted therapeutic strategies.
Abstract:
A 5-month-old infant girl died of familial lymphohistiocytosis. The central nervous system showed widespread perivascular infiltration of the cerebral pia and arachnoid, the cerebral white matter and deep gray matter, the cerebellum, and brain stem by lymphocytes, benign appearing histiocytes, and macrophages with erythro-and lymphophagocytosis. The eyes had mild infiltration of the anterior uveal tract, moderate involvement of the inner retina, and marked infiltration of the optic nerves by identical cells.
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