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Sinus histiocytosis with massive lymphadenopathy
Tropical and Geographical Medicine
|September 1, 1976
Summary
Sinus histiocytosis with massive lymphadenopathy (SHML) is detailed in five African children, primarily presenting with cervical lymphadenopathy. Histopathology reveals dilated lymph node sinuses filled with histiocytes phagocytosing lymphocytes, posing diagnostic challenges.
Area of Science:
- Pathology
- Pediatrics
- Oncology
Background:
- Sinus histiocytosis with massive lymphadenopathy (SHML), also known as Rosai-Dorfman disease, is a rare benign proliferative disorder.
- This condition typically affects children and young adults, often presenting with painless lymphadenopathy.
Observation:
- This report details five cases of SHML observed in Zambia, marking the first recognized instances in the region.
- The patients were predominantly African children exhibiting massive cervical lymphadenopathy.
Findings:
- Histopathological examination revealed widely dilated lymph node sinuses packed with mature histiocytes.
- These histiocytes demonstrated emperipolesis, actively phagocytosing lymphocytes and other hematopoietic cells.
- Diagnostic challenges associated with differentiating SHML from malignant conditions were discussed.
Implications:
- This study highlights the importance of recognizing SHML in pediatric populations, particularly in regions where it may be underdiagnosed.
- Accurate histopathological diagnosis is crucial to avoid misclassification and ensure appropriate patient management.
- The findings contribute to the understanding of SHML's geographic distribution and clinical presentation in African children.