title: [Bronchopulmonary sequestration presenting with flank pain].
abstract: BACKGROUND
  Flank pain is a classical symptom in urological patients and can have various causes. We now present a case in which we were able to diagnose retroperitoneal bronchial sequestration as a very rare cause of flank pain.
  
  
  METHODS
  In the work-up of left flank pain in a 37-year-old woman, a suprarenal mass, about 5 cm in diameter, was diagnosed in a CT scan. The patient underwent surgery and a pulmonary sequestration was identified histologically. This very rare differential diagnosis of suprarenal masses belongs to pulmonary malformations and normally is an asymptomatic accidental finding. Up to now, only few reports are documented in literature where pulmonary sequestration showed symptoms like flank pain. In this case, the pain seems to be due to mucus retention in the sequester. The literature on this disease is presented here.
authors.affiliation: Klinik für Urologie und Kinderurologie, Klinikum Fulda gAG, Fulda.
authors.forename: C
authors.initials: C
authors.lastname: Schmitt
authors.forename: O
authors.initials: O
authors.lastname: Basten
authors.forename: K
authors.initials: K
authors.lastname: Fischer
authors.forename: T
authors.initials: T
authors.lastname: Kälble
mesh_terms: D000328:Adult; D001998:Bronchopulmonary Sequestration / Q000175:diagnosis* / Q000000981:diagnostic imaging; D003937:Diagnosis, Differential; D005260:Female; D021501:Flank Pain / Q000000981:diagnostic imaging / Q000209:etiology*; D006801:Humans; D011860:Radiography, Abdominal; D036542:Tomography, Spiral Computed