Summary Pyomyositis occurs most commonly in patients with various immunosuppressive diseases. However, the association of pyomyositis with an underlying hematological malignancy has not been reviewed. We present herein a relevant case and also review the available literature regarding the association of non-tropical pyomyositis and hematological malignancies. The case patient, a 46-year old female, had non-tropical pyomyositis of the iliopsoas and obturator muscles due to Staphylococcus aureus and underlying Hodgkin's disease. Forty-four patients with pyomyositis and an associated hematological malignant disease have been reported in the literature. The most common types of hematological oncology diseases found were acute lymphocytic leukemia (present in 11/44 patients (25%)) and multiple myeloma (7/44 patients (15.9%)). Staphylococcus aureus was the most common cause of pyomyositis (26 out of 44 patients (59.1%)). The muscles of the thigh were most commonly affected (18/44 patients (40.9%)). Medical therapy with antibiotics and surgical drainage were employed in 25/44 (56.8%) of the patients. Thirty out of 44 (68.2%) of the patients had a successful outcome. Death occurred in 5/44 (11.4%) patients. In cases of pyomyositis, the physician should consider an underlying hematological malignancy.
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