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Inicio Radiología (English Edition) Tarsal tunnel ganglion cyst: intraneural or extraneural site?
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Vol. 65. Issue S2.
Supplement "Advances in Musculoskeletal Radiology"
Pages S74-S77 (October 2023)
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Vol. 65. Issue S2.
Supplement "Advances in Musculoskeletal Radiology"
Pages S74-S77 (October 2023)
Brief report
Tarsal tunnel ganglion cyst: intraneural or extraneural site?
Ganglión en el túnel del tarso: ¿localización intra o extraneural?
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J.J. Jover-Sáncheza,
Corresponding author
juanjose.jover@salud.madrid.org

Corresponding author.
, L. Cristóbal-Velascob, E. Benza-Villarejoa, A.A. Maldonado-Morillob
a Servicio de Radiodiagnóstico, Hospital Universitario de Getafe, Getafe, Madrid, Spain
b Servicio de Cirugía Plástica, Hospital Universitario de Getafe, Getafe, Madrid, Spain
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Vol. 65. Issue S2

Supplement "Advances in Musculoskeletal Radiology"

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Abstract

Intraneural ganglion cysts are very uncommon lesions, whose diagnosis has increased since the articular theory and the description of the MRI findings were established. We present a case report of a 59-year-old man with symptoms of tarsal tunnel syndrome. Foot and ankle MRI demonstrated the presence of an intraneural cystic lesion in the posterior tibial neve and its connection with the subtalar joint through an articular branch. The identification of the specific radiological signs like the «signet ring sign» allowed establishing an adequate preoperative diagnosis, differentiating it from an extraneural lesion and facilitating the articular disconnection of the nerve branch during surgery.

Keywords:
Ganglion cysts
Tarsal tunnel syndrome
Tibial nerve
Nerve compression syndromes
Resumen

Los gangliones intraneurales son lesiones muy infrecuentes, que han empezado a ser diagnosticadas gracias al establecimiento de la teoría articular para explicar su patogénesis y la definición de los signos radiológicos en la resonancia magnética (RM). Presentamos el caso de un varón de 59 años con clínica indicativa de síndrome del túnel del tarso. El estudio de RM de tobillo y pie demostró la presencia de un ganglión intraneural dependiente del nervio tibial posterior y su conexión con la articulación subastragalina a través de una rama nerviosa articular. La adecuada interpretación de signos radiológicos específicos como el «signo del anillo de sello» permitieron establecer un adecuado diagnóstico preoperatorio, diferenciándolo de una lesión extraneural y facilitando la desconexión articular de la rama nerviosa durante la cirugía.

Palabras clave:
Ganglión
Síndrome del túnel del tarso
Nervio tibial
Neuropatías compresivas

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