Squamous cell carcinoma in equine prepuce with vertebral invasion

Marcelo George Mungai Chacur, Barbara Agostinho Fachini, Leticia Yamasaki, Karina Basso, Osimar Carvalho Sanches, Valsair Matos Pessoa

Abstract


The squamous cell carcinoma is a malignant tumor that originates in the epidermal layer skin from the differentiation of keratinocytes. It has high incidence in dogs, cats, horses and cattle. Horses often occur in mucocutaneous junctions, areas like penis and foreskin are the most affected. The incidence is higher in castrated equines with more than 16 years old. This case describes a castrated crossbred horse, actually with 7 years old. The animal presented a mass in foreskin region with evolution of three months. Diagnosed as squamous cell carcinoma by aspirative cytology and biopsy. Surgical tumor mass excision was chosen as treatment. Two months after surgery there was local recurrence of tumor. Euthanasia was performed and a necropsy later in which was found the tumor invaded the adjacent musculature extending from the spine in sacral region between vertebres S1 and S2.


Keywords


Equine; Tumor; Metastasis; Prepuce; Vertebral spine.



DOI: http://dx.doi.org/10.5433/1679-0359.2014v35n3p1383

Semina: Ciênc. Agrár.
Londrina - PR
E-ISSN 1679-0359
DOI: 10.5433/1679-0359
E-mail: semina.agrarias@uel.br
Este obra está licenciado com uma Licença Creative Commons Atribuição-NãoComercial 4.0 Internacional