Frimann-Dahl sign
Last revised by Joshua Yap on 25 Jan 2023
Citation, DOI, disclosures and article data
Citation:
Abdrabou A, Yap J, Guan H, et al. Frimann-Dahl sign. Reference article, Radiopaedia.org (Accessed on 10 Oct 2024) https://doi.org/10.53347/rID-40965
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rID:
40965
Article created:
9 Nov 2015,
Ahmed Abdrabou
Disclosures:
At the time the article was created Ahmed Abdrabou had no recorded disclosures.
View Ahmed Abdrabou's current disclosures
Last revised:
Disclosures:
At the time the article was last revised Joshua Yap had no financial relationships to ineligible companies to disclose.
View Joshua Yap's current disclosures
Revisions:
7 times, by
7 contributors -
see full revision history and disclosures
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Synonyms:
- Frimann-Dahl's sign
The Frimann-Dahl sign is a diagnostic sign demonstrated when three dense lines, representing the sigmoid walls, are seen converging to the site of obstruction in sigmoid volvulus and associated with empty rectal gas 1.
History and etymology
Johan Frimann-Dahl (1902-1982) was a Norwegian Professor of Radiology and Head of the Roentgen Department from 1937-1972, at Ullevål Hospital, Oslo, Norway 2.
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References
- 1.Burrell HC, Baker DM, Wardrop P, Evans AJ. Significant plain film findings in sigmoid volvulus. Clinical radiology. 49 (5): 317-9. Pubmed
- 2. Aakhus T, Poppe E. Medical radiology in Norway. Acta radiologica (Stockholm, Sweden : 1987). 37 (3 Pt 2): 404-11. doi:10.1177/02841851960373P205 - Pubmed
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