Clear cell tumour of the lung

Dr Henry Knipe and Dr Yuranga Weerakkody et al.

Clear cell tumour of the lung is a rare benign pulmonary neoplasm that contains abundant amount of glycogen. It is often classified under the spectrum of perivascular epithelioid cell tumours.

Radiographic features

Usually seen as a rounded, smooth-walled, and peripheral parenchymal nodule without cavitation or calcification. There is no recognised lobar distribution. 

CT

Usually shows intense post-contrast enhancement which is thought to be related to its rich vascular stroma 1,4.

History and etymology

It was initially described by A A Liebow and B Castleman in 1963 2.

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Article information

rID: 21315
System: Chest
Section: Pathology
Tag: cases
Synonyms or Alternate Spellings:
  • Clear cell tumour of the lungs
  • Sugar tumour of lung
  • Sugar tumor of lung
  • Benign clear cell tumour of the lung
  • Clear cell tumour of lung
  • PEComa of the lung
  • Clear cell "sugar" tumor (CCST) of the lung
  • Clear cell "sugar" tumour (CCST) of the lung
  • Clear cell "sugar" tumor (CCST) of the lungs
  • CCST lung
  • Clear cell tumors of the lung (CCTL)

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