Referred for USG of A/P with suspected renal colic.
There is a diffuse enlargement of the right iliacus and psoas muscles. A collection with echoes is present involving the right iliacus muscle measuring 70 x 25 x 15 mm. The right psoas muscle shows 2-3 smaller collections (10-15 mm) in the lower abdomen. There is a fluid rim along the anterior aspect of the right psoas muscle in its cranial end and along the posterior aspect of the right psoas muscle in the right iliac fossa region.
There were no renal calculus/backpressure changes on the right side.