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Intracranial, extraneural ectopic lymph node in a bovine ( Bos taurus)
Author(s) -
Clancy Chad S.,
Van Wettere Arnaud J.,
Hullinger Gordon A.
Publication year - 2018
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/ahe.12364
Subject(s) - meninges , lymph node , pathology , histopathology , lymph , anatomy , lethargy , neuropathology , lymphatic system , medicine , biology , disease
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.