Dykstra Jaclyn A, Rogers Lynn L, Mansfield Susan A, Wünschmann Arno
Department of Veterinary Population Medicine/Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA.
J Vet Diagn Invest. 2012 Nov;24(6):1125-8. doi: 10.1177/1040638712461788. Epub 2012 Sep 25.
An aged, free-ranging, female, radio-collared American black bear (Ursus americanus) died after an approximately 5 month long period of weight loss. Gross necropsy findings included severe diffuse pyogranulomatous bronchopneumonia, marked granulomatous lymphadenitis of tracheobronchial lymph nodes and multiple intra-abdominal lymph nodes, chronic focal jejunal ulceration, and widespread alopecia. Histopathologic examination revealed abundant fungal organisms morphologically compatible with Blastomyces sp. within pyogranulomatous inflammatory lesions in the lungs, multiple lymph nodes, liver, kidneys, jejunum, and right adrenal gland. In addition, the haircoat had a mild infestation of chewing lice (Trichodectes pinguis euarctidos), and large numbers of rhabditid nematodes consistent with Pelodera sp. were histologically observed within hair follicles.
一只佩戴无线电项圈的老年雌性美洲黑熊（美洲黑熊）在经历了约5个月的体重减轻后死亡。大体尸检结果包括严重的弥漫性脓性肉芽肿性支气管肺炎、气管支气管淋巴结和多个腹腔淋巴结显著的肉芽肿性淋巴结炎、慢性局灶性空肠溃疡以及广泛的脱毛。组织病理学检查显示，在肺部、多个淋巴结、肝脏、肾脏、空肠和右肾上腺的脓性肉芽肿性炎症病变中，有大量形态上与芽生菌属相符的真菌生物体。此外，皮毛上有轻度的咀嚼虱（Trichodectes pinguis euarctidos）感染，在毛囊内组织学观察到大量与类圆线虫属相符的小杆线虫。
