Clancy Chad S, Van Wettere Arnaud J, Hullinger Gordon A
Utah State Veterinary Diagnostic Laboratory, Department of Animal, Dairy and Veterinary Science, Utah State University, Logan, Utah.
Anat Histol Embryol. 2018 Aug;47(4):385-388. doi: 10.1111/ahe.12364. Epub 2018 May 23.
The brain from a field necropsied 8-month-old feedlot heifer presenting with an acute history of depression, lethargy, dyspnoea and anorexia was evaluated grossly and by histopathology. The meninges overlying the left cerebral hemisphere contained a 12 × 26 × 32 mm, dark red, soft, ovoid mass. Histologic examination of this tissue revealed a well-organized lymph node with normal architecture. Organization of reactive lymphoid tissue resembling normal lymph node architecture may occur under chronic stimulation. However, there are no known aggregates of lymphoid tissue present within the cranial vault in any veterinary species. This is the first reported case of an intracranial ectopic lymph node in any species.
对一头8月龄育肥牛小母牛的大脑进行了大体和组织病理学评估，该牛有抑郁、嗜睡、呼吸困难和厌食的急性病史，是在野外剖检时获取的大脑。覆盖左脑半球的脑膜中有一个12×26×32毫米的暗红色、柔软、椭圆形肿块。对该组织进行组织学检查发现是一个结构正常、组织良好的淋巴结。在慢性刺激下，反应性淋巴组织可能会组织成类似正常淋巴结的结构。然而，在任何兽医物种的颅腔内都没有已知的淋巴组织聚集。这是在任何物种中首次报道的颅内异位淋巴结病例。
