3년령 한국 집고양이가 갑작스럽게 발병한 간헐적 경련 증상을 주 증상으로 내원하였다. 신체검사상 구리 빛 홍채가 관찰되었고, 양안에서 위협반사 소실이 관찰되었다. 혈액학 검사와 혈청 화학 검사에서 경증의 적혈구 증가증과 심한 소적혈구증, 증가된 ALT 활성도가 확인되었으며, 추가로 실시한 간기능 평가에서는 담즙산염 농도와 암모니아 농도가 증가하였다. 방사선 검사에서 간 내 다수의 결절이 관찰되었고, 간외성 션트 혈관을 발견하였으며, 추가로 실시한 컴퓨터 단층 촬영을 통해 복합 간외션트를 확인하였다. 고양이는 션트 혈관에 대한 외과적 처치술을 받기 위해 증상 완화를 위한 디아제팜과 락툴로즈를 투여하였으나 경련이 심화되었고, 심장 정지가 와서 폐사하였다.
A 3-year-old castrated male domestic shorthair cat was presented with a chief complaint of sudden onset of intermittent seizures occurring five times a day. Physical examination revealed the copper colored iris and loss of menace response at both eyes. Abnormalities of blood works and serum chemistry revealed mild erythrocytosis, severe microcytosis, and threefold increase in ALT activity. Additional liver function tests results were increased bile acid and $NH_3$ concentration. Radiographic study revealed multifocal nodules of the liver and an extrahepatic shunt was noted by ultraonography, which was confirmed by computed tomography as multiple extrahepatic shunts. The cat was scheduled for surgery applying an ameloid ring to occlude the shunt gradually. Diazepam and lactulose were instituted to the patient. However, clinical signs worsened despite medical management with shortened interval of seizures and the patient died due to cardiac arrest.
