关键词: 广州管圆线虫, 犬, 犬神经性血管线虫病, 神经功能障碍, 瘫痪

Abstract: Canine neurla angiostrongylosis （CNA） is a parasitic disease caused by the infection with Angiostrongyliasis cantonensis，characterized primarily by severe neurological dysfunction. This article discusses the diagnosis，prevention and control of CNA，aiming to provide a reference for clinical practice. A 5⁃year⁃old male Bichon Frise was presented with paralysis after reportedly ingesting a giant African land snail. Diagnostic investigations included clinical examination，complete blood count，cerebrospinal fluid（CSF）analysis，magnetic resonance imaging（MRI），and polymerase chain reaction（PCR）testing. CSF smear examination revealed elongated structures morphologically consistent with parasitic nematodes. MRI findings included T2 ⁃ weighted hyperintense signals in the thoracolumbar spinal cord and mild leptomeningeal enhancement in the brain. Based on these findings， the history of possible snail ingestion，and the endemic geographical location，a definitive diagnosis of A. cantonensis infection was confirmed. The dog died three days after presentation without receiving treatment. This case indicates that canine neural angiostrongylosis is rapidly progressive and carries a high mortality risk，underscoring the need for prompt clinical recognition and effective diagnostic and therapeutic interventions.

Key words: Angiostrongylus cantonensis, Dog, Canine neuroangiostrongyliasis, Neurological dysfunction, Paralysis