Bifid median nerve is an anatomic variation that occurs in about 18% of patients with symptoms suggestive of carpal tunnel syndrome and in about 15% of symptom-free subjects. Reversed palmaris longus is a rare anatomic muscular variation. The simultaneous presence of a bifid median nerve and a reversed palmaris longus has been very rarely described, usually during surgical exploration or in cadavers. We present two cases where ultrasound showed the presence of both abnormalities, allowing a correct diagnosis and influencing the treatment plan.
De Franco, P., Erra, C., Granata, G., Coraci, D., Padua, R., Padua, L., Sonographic diagnosis of anatomical variations associated with carpal tunnel syndrome., <<JOURNAL OF CLINICAL ULTRASOUND>>, 2013; (Dicembre): N/A-N/A. [doi:10.1002/jcu.22118] [http://hdl.handle.net/10807/54088]
Sonographic diagnosis of anatomical variations associated with carpal tunnel syndrome.
Erra, Carmen;Granata, Giuseppe;Padua, Luca
2013
Abstract
Bifid median nerve is an anatomic variation that occurs in about 18% of patients with symptoms suggestive of carpal tunnel syndrome and in about 15% of symptom-free subjects. Reversed palmaris longus is a rare anatomic muscular variation. The simultaneous presence of a bifid median nerve and a reversed palmaris longus has been very rarely described, usually during surgical exploration or in cadavers. We present two cases where ultrasound showed the presence of both abnormalities, allowing a correct diagnosis and influencing the treatment plan.
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