Light bulb sign (phaeochromocytoma)

Last revised by Daniel J Bell on 15 May 2021

Citation, DOI, disclosures and article data

Citation:

Mudgal P, Bell D, Shah V, et al. Light bulb sign (phaeochromocytoma). Reference article, Radiopaedia.org (Accessed on 25 Apr 2024) https://doi.org/10.53347/rID-26224

DOI:

https://doi.org/10.53347/rID-26224

Permalink:

https://radiopaedia.org/articles/26224

rID:

26224

Article created:

7 Dec 2013, Prashant Mudgal

Disclosures:

At the time the article was created Prashant Mudgal had no recorded disclosures.

View Prashant Mudgal's current disclosures

Last revised:

15 May 2021, Daniel J Bell ◉

Disclosures:

At the time the article was last revised Daniel J Bell had no recorded disclosures.

View Daniel J Bell's current disclosures

Revisions:

11 times, by 6 contributors - see full revision history and disclosures

Systems:

Vascular, Gastrointestinal

Sections:

Signs

Tags:

refs, cases pm

Synonyms:

Light bulb sign - adrenal pheochromocytomas
Light bulb sign of adrenal pheochromocytoma
Light bulb sign of adrenal pheochromocytomas
Light bulb sign of an adrenal pheochromocytoma

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