Syndrome du défilé cervico-thoraco-brachial : performance diagnostique de l’IRM

The thoracobrachial outlet syndrome, a false negative on MRI is possible: About a case

“…The sensitivity of MRI at the level of the pleural suspensory apparatus was 28%, 81% for diagnosing hypertrophy of the anterior scalene muscle, and 50% for diagnosing an accessory scalene muscle. As in this work, the corresponding data for the costoclavicular space were 3 cases by MRI, and none by surgery [3] .…”

“…Its sensitivity and its specificity are discussed on a case-by-case basis; in a retrospective study published by Hardy et al. [3] which was related to 48 cases operated on for TOS and having had an MRI during the preoperative assessment. MRI revealed a lesion responsible for TOS in 71% of cases.…”