The examiner passively restricts the flexion of the fingers while the examinee attempts to actively flex the thumb. A positive test is marked by restricted active thumb flexion with pain or cramping discomfort in the palmar and radial sides of the distal (lower) forearm or wrist. The magnetic resonance imaging (MRI) can confirm and localise<unk>  and<unk>  syndrome. As reported by Karalezli, magnetic resonance imaging was performed on all patients diagnosed with positive test, and there were tendinous connection in all cases.
Linburg–Comstock variation
Spaghetti plot
Patlak plot
Preston curve
Lewis offset
Isotropic bands
J wave
Wells curve