title: A case of renal pseudotumor associated with chronic pachymeningitis.
abstract: BACKGROUND
  A 56-year-old woman was referred to our hospital with a left renal mass.
  
  
  RESULTS
  Radiologic studies demonstrated a solitary space-occupying lesion in the left kidney and a malignant tumor was suspected. Left radical nephrectomy was then performed. Pathological examination revealed a sclerotic fibrous lesion with a rather distinct margin and no evidence of malignancy. These pathological findings were consistent with the diagnosis of a renal pseudotumor.
  
  
  CONCLUSIONS
  This patient had a history of chronic pachymeningitis that formed a thoracic epidural focus causing spinal cord compression and the histologic appearance of this focus was similar to the renal lesion. It was concluded that this was a rare case of a renal pseudotumor associated with multifocal fibrosclerosis.
authors.affiliation: Department of Urology, Shiga University of Medical Science, Otsu, Japan. tsutomu@belle.shiga-med.ac.jp
authors.forename: T
authors.initials: T
authors.lastname: Tanaka
authors.forename: A
authors.initials: A
authors.lastname: Hamaguchi
authors.forename: R
authors.initials: R
authors.lastname: Kushima
authors.forename: Y
authors.initials: Y
authors.lastname: Okada
mesh_terms: D002908:Chronic Disease; D005260:Female; D005355:Fibrosis; D006801:Humans; D007674:Kidney Diseases / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D008581:Meningitis / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D012598:Sclerosis; D013117:Spinal Cord Compression / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed