Chloramine-induced pneumonitis from mixing household cleaning agents.

urine microscopy. Four months before admission her haemoglobin concentration had been 13-5 g/dl, erythrocyte sedimentation rate 28 mm in first hour, and serum creatinine concentration 84 ,tmol/l (0 9 mg/100 ml) and she had been normotensive. Ultrasonography carried out because of abdominal pain showed bilateral hydronephrosis. Intravenous urography showed obstruction on both sides at the same level (L4). Retroperitoneal fibrosis was diagnosed and confirmed at operation. The fibrous tissue zone was 3-4 cm long on both sides. The obstructed ureters were liberated from the fibrous retroperitoneal tissue and transplanted to an intraperitoneal position. Biopsy specimens taken during the operation showed dense collagenous fibrotic tissue typical of retroperitoneal fibrosis. Postoperative recovery was uneventful. Sotalol was stopped and she was discharged well. Five months later she had no symptoms, was normotensive, and had a haemoglobin concentration of 13-7 g/dl and an erythrocyte sedimentation rate of 33 mm in first hour.