Pathological findings of lymphocystis in cultured flounders

Kim, Soon-bok

Korean Journal of Veterinary Research 2000;40(2):333-337.

Soon-bok Kim

Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University

양식넙치에 발생한 lymphocystis의 병리학적 소견

김순복

경상대학교 수의과대학 동물의학연구소

Abstract

This experiment was done to observe the pathological findings of lymphocystis naturally occurred in the cultured flounders in the southern sea of Korea. Anatomical sign of lymphocystis was characterized by the presence of wart-like nodules on the fins, body surface and mouth. Dense clustering of hypertrophic cells originated from fibroblasts was observed in the lesions. Infected hypertrophic cells had a thick hyaline capsule, large vesiculated nucleus with irregular rims and large nucleolus, and large ribbon-shaped basophilic inclusions at the peripheral zone of the cytoplasm. Hexagonal virus particles with the two layers of capsid were scattered throughout the cytoplasm and were absent from the inclusions.

Key Words: pathology, lymphocystis, flounders