[Multiple rare tumors of the hand: a case of multifocal reticulohistiocytosis].

The authors report the case of a woman operated for multiple dorsal nodes of the fingers with a lytic appearance on X-rays of the distal joints. The histopathology concluded on multicentric reticulohistiocytosis which is a very rare disease (fewer than 100 cases) affecting the hand (90%), skin and joints, and other organ systems. The prognosis is not good as the disease is disabling to the hand and malignant diseases may occur in 15 to 25% of cases. No treatment, even very aggressive, has been shown to be truly effective.