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The purpose of this study was to determine the place of selective renal angiography in the assessment of major renal trauma. Thirty‐one cases of renal injury assessed by urography and angiography were reviewed, and the radiological features correlated with the subsequent clinical course. Based on the angiographic findings, a classification of these more severe injuries is proposed, and the prognostic significance of renal ischæmia demonstrated. Because conservative treatment in those cases with significant ischæmia is likely to fail, early elective surgery is recommended. In this selected group, viable renal tissue can be preserved, and the necessity for subsequent nephrectomy due to secondary hæmorrhage, or continuing urine leakage, is avoided.

Localised pigmented villonodular synovitis (LPNS) is a rare condition which most commonly affects the knee. We report two contrasting cases highlighting their different clinical presentations, investigations and subsequent treatments. Arthroscopic diagnosis was performed and used as a therapeutic tool. Pre-operative MRI was also an important contributor to diagnosis. LPNS should be included in the differential diagnosis of a young adult presenting with mechanical symptoms within the knee.

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