Pyomyositis of piriformis muscle, as a rare cause of deep venous thrombosis

Abstract

The differential diagnosis of low back pain is long and rarities are under-diagnosed, with problems generally simplified as lumbar vertebral spondylosis or rheumatic conditions. Abscesses of piriform muscle are a particularity worth of evaluating when specific MRI changes are detected, and the condition might be underdiagnosed leading to delays in the treatment. We describe the case of an 18-year-old male with pyomyositis of left piriform muscle, complicated with iliac and femoral vein thrombosis, that responded well to combined antibiotherapy, anticoagulants and drainage.

Aseptic pyomyositis in rheumatoid arthritis treated with corticosteroid and DMARDs

“…Sometimes, patients may experience progressive warmth, swelling, tenderness, edema, and erythema mimicking deep vein thrombosis, cellulitis, and ruptured baker’s cyst. Thus, every possibilities should be meticulously searched and excluded [ 5 ], and any sterile and recurrent pyomyositis in the patient with underlying autoimmune inflamatory conditions with high disease activity should be suspected as aseptic pyomyositis and therefore should be treated aggressively for the primary disease.…”