title: Plain film diagnosis of perirenal hemorrhage.
abstract: The authors describes the plain film radiographic changes due to traumatic, perirenal hemorrhage in 43 patients. The direct effect of the hematoma: (1) partially or completely obscures the kidney; (2) usually obscures adjacent lumbar muscles, and (3) often produces a tilt of the lumbar spine to the affected side. The mass effect of the hematoma displaces adjacent organs and varies with its supra- or inframesocolic position.
mesh_terms: D006406:Hematoma / Q000150:complications; D006470:Hemorrhage / Q000000981:diagnostic imaging*; D006801:Humans; D007668:Kidney / Q000293:injuries*; D008722:Methods; D011859:Radiography; D012187:Retroperitoneal Space / Q000033:anatomy & histology / Q000000981:diagnostic imaging*