The synovium and synovial fluid in multicentric reticulohistiocytosis--a light microscopic, electron microscopic and cytochemical analysis of one case.

The synovium and synovial fluid have been studied in a patient with multicentric reticulohistiocytosis. Previously unreported histochemical, immunocytochemical and ultrahistochemical findings are presented and their relevance to the aetiology and pathogenesis are discussed. The synovial fluid analysis in this disease is characteristic and may be helpful in its early diagnosis.