Intracranial, extraneural ectopic lymph node in a bovine (Bos taurus). (23rd May 2018)

• Record Type: Journal Article
• Authors: Clancy, Chad S.; Van Wettere, Arnaud J.; Hullinger, Gordon A.
• Is Part Of: Anatomia, histologia, embryologia. Volume 47:Number 4(2018:Aug.)
• Page Start: 385
• Page End: 388
• Publication Date: 2018-05-23
• Subjects: bovine -- ectopic -- lymph node; Anatomy, Comparative -- Periodicals; Veterinary anatomy -- Periodicals; Veterinary histology -- Periodicals; Veterinary embryology -- Periodicals; 636.089
• DOI: 10.1111/ahe.12364
• Languages: English
• ISSNs: 0340-2096

Abstract

Abstract: 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.