The Thai Journal of Veterinary Medicine


Two cases of carcinomas in the nasal passages and paranasal sinuses of horses are presented. The first is more malignant and destructive. It destroys and replaces adjacent bony tissues. Apart from localizing in the sinuses and nasal passages, the tumour also penetrates into the cranial cavity. Despite of massive growth, no metastasis is found elsewhere. The second case studied from biopsied materiasl is of lower malignancy.

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