Seventy cases of non-tubercular psoas abscess at a rural referral centre in South Bengal.

About 70 patients admitted with psoas abscess are reviewed. The ratio of non-tubercular to tubercular psoas abscess was 6:1 and left-to-right psoas involvement was 1.6:1. Iliac fossa mass and neutrophilic leucocytosis were found in all the patients without any underlying bony involvement. Ultrasonography and needle aspiration of pus were followed by surgical drainage. Staphylococcus aureus was the most common organism cultured.