Absent Bow Tie Sign
Home Up Location Diagnosis
Next

 

Atlas of Signs in Musculoskeletal Radiology is approved by the ARRS (American Roentgen Ray Society) and is included in AJR Webreview
A. Gentili,MD, M. Beller, MD, S. Masih, MD, L.L. Seeger, MD

Diagnosis:

Bucket-handle tear of the menisci

Discussion:

Multiple sagittal T1 weighted images which reveal loss of the normal bow-tie appearance of the meniscus. The "absent bow tie sign" is another good sign of a bucket handle tear of the meniscus. The absence of the normal bow-tie is secondary to the displaced fragment which makes up the "handle" of the bucket. Requirement for the absent bow tie sign mandates that the normal requirement of at least two adjacent sagittal images with a normal meniscal body segment appearance is not present.


- Click on the image for a larger versionA - Click on the image for a larger versionB - Click on the image for a larger versionC

References:

bulletHelms CA, Laorr A, Cannon WD Jr: The absent bow tie sign in bucket-handle tears of the menisci in the knee. AJR Am J Roentgenol 1998 Jan;170(1):57-61.          [See related articles]

 

 

Google
 
Web Gentili.net


Atlas of Signs in Musculoskeletal Radiology is approved by the ARRS (American Roentgen Ray Society) and is included in AJR Webreview
A. Gentili,MD, M. Beller, MD, S. Masih, MD, L.L. Seeger, MD