NDT plus
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A 19-year-old female presented with bilateral severe loin pain associated with recurrent macroscopic haematuria. A provisional diagnosis of loin pain haematuria syndrome was made; the severity and frequency of pain led to referral to the pain management service. ⋯ Although previous reports of obstruction of the left renal vein have not described pain of this severity, magnetic resonance angiography was performed; it showed obstruction of the left renal vein as it passed between the superior mesenteric artery and aorta, i.e. the nutcracker phenomenon. Both pain and haematuria resolved fully after autotransplantation.