X-ray
Frontal
Systems: Musculoskeletal
Section: Signs
Tag: refs
Modality: X-ray (Frontal)

- “ The John Thomas sign is a "joke sign" used by medical students and residents.  ”

Used in the following article:

  • Throckmorton sign (pelvis) - “ Throckmorton sign, also known as John Thomas sign, refers to when the penis points in the direction of unilateral disease, typically of the pelvis...”

View full size version of Positive John Thomas sign

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