Histopathological Observation of Cynoglossus semilaevis Günther Infected with Red Abdominal Shell Disease

半滑舌鳎红皮病的病理组织学观察（英文）

The histopathological changes in various organs of Cynoglossus semilaevis Günther infected with red abdominal shell disease were observed by dissection and HE staining. In the ill C. semilaevis, the body surface was congestive and bleeding;the skin in the blind side ulcerated with extravasated blood; the gill filaments ulcerated with a lot of mucus; the liver, pancreas and spleen were swelling and bleeding with extravasated blood; the small intestine was congestive and bleeding. Degeneration and necrosis, and submucosal bleeding occurred in the skin of C. semilaevis infected with red abdominal shell disease. There was red blood cell infiltration and deposition in the space among muscle fibers. Epithelial degeneration and necrosis occurred in the parotid gland. The efferent branchial artery was congestive. The myocardial fibers had a loose structure, and a large area of fracture appeared. The liver cells were swelling with degeneration and necrosis and concentrated nucleus. A large area of the renal interstitial was broken down and necrotic. The submucosa of the small intestine had necrosis and hemorrhage.

通过解剖和HE染色观察患红皮病半滑舌鳎各器官的病理组织学变化。病鱼体表充血、出血,无眼侧皮肤溃烂、淤血,鳃丝溃烂、有大量粘液;肝胰脏和脾脏肿大、淤血出血;小肠充血、出血。皮肤变性坏死以及粘膜下层出血,肌纤维间有血红细胞的渗透和淤积,腮小腺上皮变性坏死,出鳃动脉充血。心肌纤维结构松散、出现大面积断裂,肝脏细胞水肿、细胞变性、细胞核集中。肾脏间质出现局灶性的大面积组织崩解和坏死小肠粘膜下层坏死脱落、出血。结果显示:患红皮病的半滑舌鳎多个组织器官表现为充血、出血和坏死。