Osteosarcoma in the Skull of a Holstein Heifer
2014
Micheloud, Juan Francisco | Guidi, Maria Guadalupe | Gimeno, Eduardo Juan
A-2-year-old heifer showed a mass on the frontal part of the skull. Cytological analysis displayed pleomorphic, polyedric and fusiform cells with extracellular hyaline material. Histologically, the excised mass showed proliferation of spindle-to-polyhedral cells that exhibited anisocytosis and anisocaryosis. Osteoid substance was demonstrated by Masson´s thricromic stain. Tumoral cells and osteoid expressed osteocalcin. This case report communicates a very rare osteosarcoma in the corneal process of a young heifer. As the heifer was previously dehorned, it is possible that this procedure was a predisposing factor for malignant growth.
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Show more [+] Less [-]Fil: Micheloud, Juan Francisco. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Investigación Animal del Chaco Semiárido - Estación Experimental Agropecuaria Salta; Argentina.
Show more [+] Less [-]Fil: Guidi, Maria Guadalupe. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias. Catedra de Patología General; Argentina.
Show more [+] Less [-]Fil: Guimeno, Eduardo. Universidad Nacional de La Plata. Facultad de Ciencias Veterinarias; Argentina.
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