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Renal lobar dysmorphism: a potential mimic of renal malignancy
  1. Derek Barry Hennessey1,
  2. Adrian B Brady2,
  3. Rhona Dempsey1 and
  4. Kenneth Patterson1
  1. 1Urology, Mercy University Hospital, Cork, Ireland
  2. 2Radiology, Mercy University Hospital, Cork, Ireland
  1. Correspondence to Dr Rhona Dempsey; 99362562{at}umail.ucc.ie

Abstract

A renal pseudotumour is any apparent renal mass that simulates a tumour on radiological imaging but is composed of normal tissue. Renal pseudotumours may be inflammatory, vascular, postsurgical or congenital. We report a case of renal lobar dysmorphism (RLD) of the kidney, a congenital renal pseudotumour. A 45-year-old man presented with scrotal swelling. Testicular ultrasound showed an epididymal cyst. Renal ultrasound showed a right solid renal apparent mass of 2.4 cm in diameter. Triphasic renal CT showed this was consistent with RLD. Intravenous urography confirmed a central calyx within the dysmorphic lobe. RLD is a rare congenital normal anatomical variant, which can appear as a renal pseudotumour. No further investigation or intervention is necessary. We present the radiological findings of RLD and review the literature.

  • urology
  • ultrasonography
  • urological surgery
  • radiology
  • pathology

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Footnotes

  • Twitter @rhona_dempsey

  • Contributors DBH was involved in identifying the case, patient care, writing the article, drafting the article, interpretation of data and final approval of the version published. He is a guarantor. ABB was involved in identifying the case, patient care, writing the article, drafting the article, interpretation of data and final approval of the version published. RD was involved in patient consent, patient follow-up, literature review, planning the work, writing the article, drafting the article. She is a guarantor. KP was involved in patient care, literature review, planning the work, writing the article, drafting the article.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient consent for publication Consent obtained directly from patient(s).

  • Provenance and peer review Not commissioned; externally peer reviewed.