title: Urinothorax: presentation of a new case as pleural exudate.
abstract: Urinothorax or urothorax (UT) is a rare condition which often goes undiagnosed. In published cases of UT, the pleural fluid is usually transudative and is very rarely exudative. We present a case of UT after right nephroureterectomy for urothelial carcinoma, in which the pleural fluid presented characteristics of exudate. The diagnosis of UT was confirmed with the finding of a pleural/serum creatinine ratio above one and after demonstrating the presence of a postsurgical urinoma in the right renal fossa. UT should be included in the differential diagnosis of pleural effusion in patients with a recent urinary tract disorder, even when it is pleural exudate.
authors.affiliation: Department of Respiratory Medicine, Hospital Universitario Morales Meseguer, Murcia, Spain. rbernabeumora@hotmail.com
authors.forename: Roberto Bernabeu
authors.initials: RB
authors.lastname: Mora
authors.forename: Carmen Marín
authors.initials: CM
authors.lastname: Silvente
authors.forename: Juan Miguel Sánchez
authors.initials: JM
authors.lastname: Nieto
authors.forename: Maria Angeles Chans
authors.initials: MA
authors.lastname: Cuervo
mesh_terms: D000369:Aged, 80 and over; D003404:Creatinine / Q000032:analysis; D005122:Exudates and Transudates; D005260:Female; D006801:Humans; D007668:Kidney / Q000002:abnormalities; D010535:Laparoscopy; D009392:Nephrectomy; D010996:Pleural Effusion / Q000175:diagnosis*; D011183:Postoperative Complications; D014513:Ureter / Q000601:surgery; D014556:Urine; D053584:Urinoma / Q000175:diagnosis
chemical_list: D003404:Creatinine