Jahns H, McElroy MC. Bovine intracranial neoplasia: A retrospective case series.
Vet Pathol 2022;
59:824-835. [PMID:
35638647 PMCID:
PMC9358308 DOI:
10.1177/03009858221100433]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This case series describes the clinical and pathological findings of intracranial
neoplasms in cattle, a rare entity. Data and archived tissues from 24
intracranial tumors were reviewed and investigated by immunohistochemistry for
S100, glial fibrillary acidic protein, synaptophysin, pancytokeratin, vimentin,
neuron-specific enolase, oligodendrocyte transcription factor 2, and isocitrate
dehydrogenase 1. Ages of affected cattle ranged from 6 months to 14 years (5.7 ±
3.6 years; mean ± SD). Predominant clinical signs were altered mental state,
central vestibular dysfunction, and cerebellar incoordination. Twelve gliomas,
all high grade, were the most common tumors observed: oligodendrogliomas (n =
6), astrocytomas (n = 4), and undefined gliomas (n = 2). The oligodendrogliomas
were located in the brainstem and extended into the ventricles, whereas all
astrocytomas were located in the forebrain. Isocitrate dehydrogenase 1 gene
mutation as described in humans was not detected. The 5 meningiomas exhibited
microcystic, chordoid, atypical, papillary, and anaplastic subtypes. Metastatic
carcinomas (n = 4) were the only secondary tumor type present, and these were
located at the level of the medulla with infiltration of cranial nerves and in
one case leptomeningeal carcinomatosis. In addition, 2 medulloblastomas and 1
choroid plexus carcinoma were diagnosed. Immunohistochemistry for vimentin and
pancytokeratin was particularly useful to distinguish meningiomas and choroid
plexus carcinoma (positive for vimentin only) from mestastatic carcinomas
(positive for cytokeratin only) as all showed a papillary growth pattern.
Overall, the morphological features were comparable with other species and the
human and canine classifications could be applied.
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