2020 April Fools' Case: Normally we'd prank you with this but given the current COVID-19 crisis we decided just to release it straight up without trying to trick anyone. Hopefully you can at least still enjoy a little laugh at this difficult time - view case


Dr Tee Yu Jin and Dr Daniel J Bell et al.

The term lamellated (or laminated which means the same thing) is a radiopathological term used to describe the layered appearance of many calculi, including those of the renal tract, the salivary glands, and the biliary tree. The internal structure of these calculi has been likened to that of an onion with multiple concentric layers.

History and etymology

Lamellated and laminated derive from the same Latin root. Lamella is the Latin diminutive of lamina. Lamina is Latin for thin plate.

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Article information

rID: 63623
Section: Pathology
Synonyms or Alternate Spellings:
  • Lamellation (term)
  • Lamination (term)
  • Lamelliform (term)
  • Laminated (term)

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Cases and figures

  • Case 1: bladder calculus
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