1)麻布大学環境保健学部(〒229-8501 相模原市淵野辺1-17-71) 2)麻布大学獣医学部(〒229-8501 相模原市淵野辺1-17-71) |
(1998年2月12日受付・1998年9月7日受理)
顔面腫脹と外鼻孔および口腔からの出血を伴い急死した台湾リス8例に化膿性顎下腺炎および下顎リンパ節炎,線維素性肺炎がみられ,肺動脈枝および肺毛細血管内に血栓形成が認められ,C群溶血性レンサ球菌が分離された.2例では,さらに心冠静脈,肝類洞,脾洞,腎糸球体,小脳にも血栓が存在し,他の1例の大脳および小脳には化膿性髄膜炎と細菌の血管栓塞が認められた.これらの病理組織学的所見から,飲料水または餌を介して唾液腺と局所リンパ節に菌が侵入し,血行を介して全身臓器へ伝播して播種性血管内凝固症候群(DIC)が惹起されたと考えられた. --------------------日獣会誌 52,101〜104(1999)
Pathology of Formosan Squirrels Infected with Group C Hemolytic StreptococcusSeigo KISHIKAWA*, Motonobu HARA, Masafumi FUKUYANA, Jun SUZUKI,Kiyoshi TABUCHI, Fujiko SUNAGA, Kazuhiko NAMIKAWA, Kikumi OGIHARA and Yasunori KANNO
SUMMARY Eight Formosan squirrels peracutely died showing facial swelling and nasal and oral bleeding, and
hemolytic Streptococcus zooepidemicus was isolated. Histopathology revealed suppurative inflammation
in the submaxillay glands and submandibular lymph nodes and fibrinous pneumonia with capillary and arterial
thrombosis. Thrombosis was also detected in the coronary venous branches, hepatic sinusoids, splenic
sinuses, renal glomeruli and cerebellar capillaries of two cases, and suppurative meningitis with bacterial
embolism were present in the cerebrum and cerebellum of one case. These findings suggested that the port
of entery was the salivary glands and regional lymph nodes via drinking water or food, resulting in systemic
spread via the blood stream. With disseminated intravascular coagulation syndrome. --------------------J. Jpn. Vet. Med. Assoc., 52, 101〜104 (1999) |