Lambda sign (sarcoidosis)

Last revised by Craig Hacking ◉ ◈ on 1 Jun 2020

Citation, DOI, disclosures and article data

Citation:

Udayakumar M, Hacking C, Bell D, et al. Lambda sign (sarcoidosis). Reference article, Radiopaedia.org (Accessed on 29 Sep 2023) https://doi.org/10.53347/rID-6824

DOI:

https://doi.org/10.53347/rID-6824

Permalink:

https://radiopaedia.org/articles/6824

rID:

6824

Article created:

21 Aug 2009, M Udayakumar

Disclosures:

At the time the article was created M Udayakumar had no recorded disclosures.

View M Udayakumar's current disclosures

Last revised:

1 Jun 2020, Craig Hacking ◉ ◈

Disclosures:

At the time the article was last revised Craig Hacking had no recorded disclosures.

View Craig Hacking's current disclosures

Revisions:

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

Systems:

Chest

Sections:

Signs

Synonyms:

Lambda sign of sarcoidosis

The lambda sign is seen on gallium-67 scans in the setting of thoracic sarcoidosis. Bilateral hilar and right paratracheal lymph nodes are typically involved which can resemble the Greek letter lambda (λ).