Light bulb sign (pheochromocytoma)

The light bulb sign of an adrenal pheochromocytoma is an MRI feature of this tumor. It refers to marked hyperintensity on T2 weighted sequences, however, this finding is neither sensitive nor specific and pheochromocytomas are more often heterogeneous with intermediate or high T2 signal intensity.

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Article information

rID: 26224
Section: Signs
Synonyms or Alternate Spellings:
  • Light bulb sign - adrenal pheochromocytomas
  • Light bulb sign of adrenal pheochromocytoma
  • Light bulb sign of adrenal pheochromocytomas
  • Light bulb sign of an adrenal pheochromocytoma

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