TY - JOUR
T1 - Atypical anomalous peroneal (fibularis) tendon
T2 - Potential pitfall in musculoskeletal sonography
AU - Sayeed, Yusef
AU - Finnoff, Jonathan T.
AU - Pawlina, Wojciech
AU - Smith, Jay
PY - 2011/5/1
Y1 - 2011/5/1
N2 - The first sonographic description of an anomalous peroneal tendon variant is presented. The sonologist or sonographer may then erroneously conclude that the tendon had inserted into the peroneus brevis and misdiagnose a peroneus brevis split tear. Multiple other peroneal tendon variations have been described arising from the peroneus brevis, peroneus longus, and/or interosseous membrane and having one or more insertions into the retrotrochlear eminence, peroneal tubercle, peroneus brevis, peroneus longus, inferior peroneal retinaculum, cuboid, fifth metatarsal, and/or fifth digit. Whether considered an atypical peroneus quartus or perhaps a bifid peroneus longus, the variant observed in this report has important clinical implications. When 3 tendinous structures are encountered in the retromalleolar groove, the differential diagnosis is typically limited to a split peroneus brevis tear with 2 hemitendons, or a peroneus quartus.
AB - The first sonographic description of an anomalous peroneal tendon variant is presented. The sonologist or sonographer may then erroneously conclude that the tendon had inserted into the peroneus brevis and misdiagnose a peroneus brevis split tear. Multiple other peroneal tendon variations have been described arising from the peroneus brevis, peroneus longus, and/or interosseous membrane and having one or more insertions into the retrotrochlear eminence, peroneal tubercle, peroneus brevis, peroneus longus, inferior peroneal retinaculum, cuboid, fifth metatarsal, and/or fifth digit. Whether considered an atypical peroneus quartus or perhaps a bifid peroneus longus, the variant observed in this report has important clinical implications. When 3 tendinous structures are encountered in the retromalleolar groove, the differential diagnosis is typically limited to a split peroneus brevis tear with 2 hemitendons, or a peroneus quartus.
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U2 - 10.7863/jum.2011.30.5.710
DO - 10.7863/jum.2011.30.5.710
M3 - Article
C2 - 21527622
AN - SCOPUS:79955534454
SN - 0278-4297
VL - 30
SP - 710
EP - 713
JO - Journal of Ultrasound in Medicine
JF - Journal of Ultrasound in Medicine
IS - 5
ER -