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Multiloculated renal cyst

Disease definition

A rare benign renal tumor characterized by a typically unilateral, solitary, multiloculated cystic mass consisting of small, non-communicating cysts with flat, cuboidal, or hobnail epithelial lining, separated by fibrous septa which may have an ovarian stroma-like appearance or be paucicellular. The tumor is surrounded by a thick fibrous capsule and does not contain solid areas or necrosis. Patients may be asymptomatic or present with a palpable abdominal mass and/or abdominal or flank pain. Age distribution is bimodal, the typical age of onset being either below five or between 40 and 70 years of age.


Classification level: Disorder
  • Synonym(s):
    • Multilocular cyst of the kidney
    • Multilocular renal cyst
  • Prevalence: -
  • Inheritance: -
  • Age of onset: -
  • ICD-10: -
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -
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