Primary malignant peripheral nerve sheath tumors arising from the spinal          canal invading the abdominal cavity in a dog

Momoko NARITA; Hidetaka NISHIDA; Sho GOTO; Mami MURAKAMI; Hiroki SAKAI; Kohei NAKATA; Sadatoshi MAEDA; Hiroaki KAMISHINA

doi:10.1292/jvms.19-0113

Surgery

Primary malignant peripheral nerve sheath tumors arising from the spinal canal invading the abdominal cavity in a dog

Momoko NARITA, Hidetaka NISHIDA, Sho GOTO, Mami MURAKAMI, Hiroki SAKAI, Kohei NAKATA, Sadatoshi MAEDA, Hiroaki KAMISHINA

Author information

Momoko NARITA
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Hidetaka NISHIDA
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Department of Advanced Clinical Sciences, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku Ourai Kita, Izumisano, Osaka 598-8531, Japan
Sho GOTO
Animal Medical Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Mami MURAKAMI
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Animal Medical Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Hiroki SAKAI
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Kohei NAKATA
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Animal Medical Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Sadatoshi MAEDA
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Animal Medical Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Hiroaki KAMISHINA
Joint Department of Veterinary Medicine, Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan
Animal Medical Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan

Keywords: dog, invasion, peripheral nerve sheath tumor

JOURNAL OPEN ACCESS

2020 Volume 82 Issue 4 Pages 452-456

DOI https://doi.org/10.1292/jvms.19-0113

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Abstract

A 9-year-old neutered male Wire Fox Terrier presented with an 1-month history of hindlimb paresis. Magnetic resonance imaging revealed a contrast-enhanced mass at the level of the L2 vertebral canal. The dog became paraplegic with no deep perception of the hindlimbs, and the mass was surgically removed. The histopathological diagnosis was of a malignant peripheral nerve sheath tumor (MPNST). The dog suffered a relapse of right hindlimb ataxia at 225 days after the surgery. The dog died 434 days after the surgery. Necropsy found a large mass in the abdominal cavity invading from the L2-nerve. This is the first report of MPNST invading the abdominal cavity through the nerve root.

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