Background: Henoch-Schönlein Purpura (HSP) is a systemic hypersensitivity disease of unknown cause that is characterized by a purpuric rash and systemic manifestations, such as colicky abdominal pain, polyarthralgia, and acute glomerulonephritis. Common complications of HSP that lead to surgical intervention include intussusception, perforation, necrosis, and massive gastrointestinal bleeding. Unusual clinical manifestations of HSP may include edema of the scrotum and eyes. Lumbar swelling is rarely seen as a complication of HSP. Case Report: A four-year-old boy was admitted to our emergency room with a 7 day history of increasing abdominal pain. Within 48 hours of admission, erythematous macules and palpable purpuric lesions developed on the lower extremities. On the third day of hospitalization, sudden onset of severe back pain, swelling on the lumbar region and refusal to walk were seen. On the fifth day, lumbosacral edema and pain resolved but facial edema developed. He was diagnosed clinically with HSP. Conclusion: To the best of our knowledge, only a few cases of HSP with lumbar edema have been reported so far. If the first clinical symptoms of HSP are atypical, clinical progress can be atypical, too.

Abs tractNutcracker syndrome caused by compression of the left renal vein between the abdominal aorta and the superior mesenteric artery is a rare anatomo-pathological condition. The patients have symptoms such as hematuria, proteinuria, and left flank pain. In this paper, we report a 13-year-old boy who presented with macroscopic haematuria. Routine laboratory tests for the evaluation of hematuria were normal. Abdominal computed tomography revealed that the left renal vein was compressed between the aorta and the superior mesenteric artery. A diagnosis of nutcracker syndrome was established. If Nutcracker syndrome is considered in the differential diagnosis of haematuria, it is easily diagnosed by imaging techniques. (The Me di cal Bul le tin of Ha se ki 2015; 53: 101-3)