Third mogul sign
Last revised by Daniel J Bell on 12 Feb 2018
Citation, DOI, disclosures and article data
Citation:
Tatco V, Bell D, Knipe H, Third mogul sign. Reference article, Radiopaedia.org (Accessed on 06 Oct 2024) https://doi.org/10.53347/rID-43469
rID:
43469
Article created:
11 Mar 2016,
Vincent Tatco
Disclosures:
At the time the article was created Vincent Tatco had no recorded disclosures.
View Vincent Tatco's current disclosures
Last revised:
12 Feb 2018,
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:
4 times, by
3 contributors -
see full revision history and disclosures
Sections:
Synonyms:
- 3rd mogul sign
The third mogul sign can be seen on frontal chest radiograph in the presence of left atrial enlargement. It refers to an extra mogul or bump along the upper left cardiac silhouette just below the left main bronchus.
The third mogul sign commonly represents the enlarged left atrial appendage, particularly in patients with rheumatic heart disease. Other causes that may also appear as a third mogul on the cardiomediastinal contour include:
- cardiac aneurysm
- pericardial cyst
- coronary artery aneurysm
- mediastinal tumor
- pericardial defect
- sinus of Valsalva aneurysm
- dilated right ventricular outflow tract
References
- 1. Hussain S, Latif SAA, Hall AD. Rapid Review of Radiology. CRC Press. (2010) ISBN:1840766395. Read it at Google Books - Find it at Amazon
- 2. Spindola-Franco H, Fish BG. Radiology of the Heart. Springer Science & Business Media. (2012) ISBN:146138205X. Read it at Google Books - Find it at Amazon
- 3. Reeder MM. Reeder and Felson’s Gamuts in Radiology. Springer Science & Business Media. (2013) ISBN:1475722699. Read it at Google Books - Find it at Amazon
- 4. FAAC LRGMD. Felson's Principles of Chest Roentgenology. Saunders. (2007) ISBN:1416029230. Read it at Google Books - Find it at Amazon
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