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A 73-year-old woman with diabetes mellitus and hypothyroidism had been well until 4 days before she presented with fever, productive coughing, and general malaise. Dyspnea gradually worsened, and she was admitted to Kobe City General Hospital. She appeared toxic and was in moderate respiratory distress on admission. There were scattered rales in both lung fields. The abdomen was soft with no tenderness. A chest roentgenogram showed peripheral infiltrates in both lung fields. Arterial blood gas analysis showed a Po2 of 48.6 Torr and Pco2 of 27.2 Torr. A blood culture on admission showed Escherichia coli. Computerized tomography of the chest showed multiple nodules of various sizes in the peripheral lung fields. Some nodules had necrotic centers and feeding vessels. Wedge-shaped lesions abutting the pleura were also seen. These findings strongly suggested septic pulmonary emboli. An abscess in the left kidney, which was considered to be the source of the septic pulmonary emboli, was found with Ga scintigraphy, ultrasonography, and computerized tomography of the abdomen. Treatment with antibacterial drugs was effective against the lung lesions but not the renal abscess. A left nephrectomy was done. In the proper clinical setting, characteristic CT features of septic emboli can contribute to early diagnosis of this disease.
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T Hasegawa, and
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B Umeda
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