Paraneoplastic Multicentric Reticulohistiocytosis on 18F-FDG PET/CT Breast Carcinoma Follow-up

We report the case of a 60-year-old woman who underwent 18 F-FDG PET/CT to evaluate a metastatic breast carcinoma. Follow-up 18 F-FDG PET/CT showed progressive disease with 18 F-FDG increased in primary tumor, axillary lymph nodes, and pleural and bone diffuse metastases but also a concomitant uptake in multiples joints. The anatomopathological analysis from skin biopsy revealed a multicentric reticulohistiocytosis, considered paraneoplastic in...