A Rare Diagnosis of Infiltrative Muscle Disease in a Patient With Multiple Joint Pain and Fever.

Hemophagocytic lymphohistiocytosis (HLH) is characterized by excessive immune activation.1 It involves the activation of lymphocytes and histiocytes that infiltrate various organs and release cytokines.1.

Aseptic abscess associated with SAPHO syndrome: a case report.

Aseptic abscess (AA) is a rare autoinflammatory disorder, characterized by the formation of sterile abscesses in various organs, and is accompanied by inflammatory bowel disease. Antibiotic treatment is ineffective, but steroid therapy shows a good response. AA can be difficult to differentiate from infection because abscesses appear similar both radiologically and histopathologically. Herein, we present the case of a 56-year-old woman with AA in the anterior chest wall and synovitis, acne, pustulosis, hyperostosis, and osteitis (SAPHO) syndrome.