Metastatic extradural melanoma of the lumbar spine in a cat

Abstract A 7‐year‐old neutered male Domestic shorthair cat, with a 1.5‐year history of left eye enucleation secondary to a diffuse iris malignant melanoma, was evaluated for progressive onset of pelvic limb paresis and ataxia with severe thoracolumbar hyperaesthesia and dysorexia. Neurological exami...

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Main Authors: Sabrina Fert, Pablo River, Laura Bondonny, Laurent Cauzinille
Format: Article
Language:English
Published: Wiley 2023-11-01
Series:Veterinary Medicine and Science
Subjects:
Online Access:https://doi.org/10.1002/vms3.1248
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author Sabrina Fert
Pablo River
Laura Bondonny
Laurent Cauzinille
author_facet Sabrina Fert
Pablo River
Laura Bondonny
Laurent Cauzinille
author_sort Sabrina Fert
collection DOAJ
description Abstract A 7‐year‐old neutered male Domestic shorthair cat, with a 1.5‐year history of left eye enucleation secondary to a diffuse iris malignant melanoma, was evaluated for progressive onset of pelvic limb paresis and ataxia with severe thoracolumbar hyperaesthesia and dysorexia. Neurological examination localised a lesion to the T3–L3 spinal cord segments. Magnetic resonance imaging of the thoracolumbar spine showed a well‐defined extradural T1‐weighted hyperintense non‐contrast‐enhancing mass, initially suggesting a potential haemorrhagic component. Exploratory surgery revealed a brownish extradural lumbar mass. Histologic examination concluded to a melanoma, most probably metastatic given the animal's previous medical history. This report highlights the importance of collecting a complete medical history, which can help in obtaining a preliminary differential diagnosis in cats with clinical signs of myelopathy. Although the location of this metastasis is particularly unusual both in human and veterinary medicine, making optimal treatment challenging for neurosurgeon, our increased understanding of immune and tumour cell biology during the past decade is likely to improve the future treatments of feline melanoma and its metastases.
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spelling doaj.art-2e32ffd861b44beb8cf8336a83ce96ed2023-11-15T15:57:30ZengWileyVeterinary Medicine and Science2053-10952023-11-01962393239810.1002/vms3.1248Metastatic extradural melanoma of the lumbar spine in a catSabrina Fert0Pablo River1Laura Bondonny2Laurent Cauzinille3Department of NeurologyVeterinary Hospital Center FrégisGentillyFranceDepartment of SurgeryVeterinary Hospital Center OnlyvetSaint PriestFranceDepartment of SurgeryVeterinary Hospital Center OnlyvetSaint PriestFranceDepartment of NeurologyVeterinary Hospital Center FrégisGentillyFranceAbstract A 7‐year‐old neutered male Domestic shorthair cat, with a 1.5‐year history of left eye enucleation secondary to a diffuse iris malignant melanoma, was evaluated for progressive onset of pelvic limb paresis and ataxia with severe thoracolumbar hyperaesthesia and dysorexia. Neurological examination localised a lesion to the T3–L3 spinal cord segments. Magnetic resonance imaging of the thoracolumbar spine showed a well‐defined extradural T1‐weighted hyperintense non‐contrast‐enhancing mass, initially suggesting a potential haemorrhagic component. Exploratory surgery revealed a brownish extradural lumbar mass. Histologic examination concluded to a melanoma, most probably metastatic given the animal's previous medical history. This report highlights the importance of collecting a complete medical history, which can help in obtaining a preliminary differential diagnosis in cats with clinical signs of myelopathy. Although the location of this metastasis is particularly unusual both in human and veterinary medicine, making optimal treatment challenging for neurosurgeon, our increased understanding of immune and tumour cell biology during the past decade is likely to improve the future treatments of feline melanoma and its metastases.https://doi.org/10.1002/vms3.1248extraduralfelineimmune cell biologylumbar spinemelanomametastatic
spellingShingle Sabrina Fert
Pablo River
Laura Bondonny
Laurent Cauzinille
Metastatic extradural melanoma of the lumbar spine in a cat
Veterinary Medicine and Science
extradural
feline
immune cell biology
lumbar spine
melanoma
metastatic
title Metastatic extradural melanoma of the lumbar spine in a cat
title_full Metastatic extradural melanoma of the lumbar spine in a cat
title_fullStr Metastatic extradural melanoma of the lumbar spine in a cat
title_full_unstemmed Metastatic extradural melanoma of the lumbar spine in a cat
title_short Metastatic extradural melanoma of the lumbar spine in a cat
title_sort metastatic extradural melanoma of the lumbar spine in a cat
topic extradural
feline
immune cell biology
lumbar spine
melanoma
metastatic
url https://doi.org/10.1002/vms3.1248
work_keys_str_mv AT sabrinafert metastaticextraduralmelanomaofthelumbarspineinacat
AT pabloriver metastaticextraduralmelanomaofthelumbarspineinacat
AT laurabondonny metastaticextraduralmelanomaofthelumbarspineinacat
AT laurentcauzinille metastaticextraduralmelanomaofthelumbarspineinacat