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Ectomesenchymoma of the medulla oblongata in a calf
S Kuniyoshi1, Y Ishikawa, K Kadota
1Hokkaido Research Station, National Institute of Animal Health, Sapporo, Japan.
Zentralblatt Fur Veterinarmedizin. Reihe A
|January 9, 1998
Abstract:
An ectomesenchymoma was found in a 62-day-old female calf, and examined immunohistochemically. The neoplastic cells were characterized by positive immunostaining for neurofilaments, glial fibrillary acidic protein, alpha smooth muscle actin, myoglobin, and keratin. This tumour, which displayed neurocytic, astrocytic, and myoblastic differentiation, may have arisen from pluripotential ectomesenchyme. Brain tumours showing multidirectional phenotypic expression presumably occur mainly in fetuses or calves.