Ureteric calculus with migration into psoas muscle - Case report and literature review.

Urolithiasis is a common condition managed by urologists. We present a rare CASE of a ureteric calculus migrating into the patient's psoas muscle in context of chronic infection and obstruction and summarize the literature surrounding this phenomenon. To our knowledge, only four cases have previously been presented in the literature of obstructing calculi migrating into the retroperitoneum. Our case is the first in which there was no associated psoas abscess and the migrated calculus has remained in situ without any further sequelae.