Owing to the proximal attachments of the iliopsoas, a pus-filled<unk> <unk> , as may occur in lumbar tuberculosis, may drain inferiorly into the upper medial thigh and present as a swelling in the region.[citation needed]
Treatment may involve drainage and antibiotics.
Psoas abscess
Pyonephrosis
Hydronephrosis
Kidney abscess
Retroperitoneal abscess
Bladder stone
Pyelonephritis
Sacroiliitis