[Perinephretic phlegmon: about 36 cases].

The authors report a series of 36 cases of perinephric phlegmon during 15 years. The patients are 27 men and 9 women. Mean age was 37 years (ranging between 25 and 70). The promoting factors of PPN are diabetes (27.8%), and kidney calculi (22.3%). Delay diagnosis is more than 3 weeks in 80% of the patients. The clinical symptomatology was dominated by pain, fever and flank mass. Diagnosis is carried out by ultrasonography in 84% and by CT scan whenever it is done. The common germs are negative Gram bacilli and staphylococcus. The treatment consists in antibiotherapy associated to a percutaneous drainage of the collection in 6 patients (16.7%) and a surgical drainage in 30 patients (83.7%). The follow-up are favorable in all cases.