Polycystic Kidney Disease in the Adult Female Pygmy Hippopotamus (Choeropsis liberiensis)

꼬마하마(Choeropsis liberiensis)에서 확인된 다낭신장병

  • Accepted : 2014.10.07
  • Published : 2014.10.31

Abstract

Polycystic kidney disease (PKD) is characterized by multiple cysts within the renal parenchyma and is a common heritable disease in humans, dogs, and cats. However, a few cases of PKD have been described in captive pygmy hippopotamuses. Bilateral PKD was observed in a 33-year-old, 198-kg female pygmy hippopotamus during its necropsy in Seoul Zoo on 15 January 2013. The diagnosis of PKD was confirmed by gross findings and histopathological examination. One kidney was slightly enlarged, and the lower portion of other kidney contained a large cyst filled with light yellow, watery fluid. Both kidneys had numerous, variably sized fluid-filled cysts of 2 to 20 mm in diameter. Considerable portions of the renal cortex and medulla were replaced by cysts. Microscopic inspection showed that the cysts were lined with low cuboidal to flat epithelial cells. The present case report of PKD in a pygmy hippopotamus is the first in Korea.

다낭신장병은 신장실질에 다수의 낭포가 형성되는 것을 특징으로 하는 사람, 개, 고양이에서 흔히 있는 유전성 질환으로서, 사육상태의 꼬마하마(pygmy hippopotamus)에서도 몇 몇 증례가 보고되고 있다. 2013년 1월 15일 체중 198킬로그램, 33년령 암컷 꼬마하마의 부검과정 중에 양쪽 신장에서 다낭신장병이 관찰되었다. 한 쪽 신장은 약간 종대된 반면 다른 쪽 신장의 아랫부분은 옅은 황색의 수양성 액체로 채워진 한 개의 큰 낭포가 있었다. 양측 신장 모두 직경 2 mm에서 20 mm의 다양한 크기의 액체가 함유된 다수의 낭포들이 관찰되었다. 상당한 부분의 신장 피질과 수질부가 낭포들로 대체되어 있었다. 현미경 검사에서 낭포들의 안쪽은 낮은 입방세포에서부터 편평상피세포들로 구성되어 있었다. 육안적인 소견과 조직병리학적인 검사로 다낭신장병으로 진단하였다. 본 증례보고는 한국에서 최초로 꼬마하마에서 다낭신장병이 확인된 것이다.

Keywords

References

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