Pyomyositis presenting as myonecrosis secondary to methicillin-resistant Staphylococcus aureus bacteremia in chronic lymphocytic leukemia.

The incidence of pyomyositis in immunocompromised patients with HIV, diabetes, myelodysplastic syndromes, and acute lymphocytic leukemia is well documented. However, there are only a few reports of pyomyositis and myonecrosis in patients with chronic lymphocytic leukemia (CLL). We present a rare case of pyomyositis presenting as myonecrosis secondary to methicillin-resistant Staphylococcus aureus bacteremia in a 72-year-old patient with CLL. Pyomyositis, although rare, warrants increased provider awareness and management, especially among CLL patients who pose diagnostic and treatment challenges.