Presentation
For illustration only.
From the case:
Speech bubble sign
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Image available free online at:
http://www.clipartbest.com/free-printable-blank-speech-bubbles
Case Discussion
The appearances of a Baker's cyst has been described as appearing like a speech (or talk) bubble, like those used in cartoon.
This related to the neck of the cyst arising from the synovial space into the larger dilated cystic element.