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The diaphragmatic hernia is a rare cause of colic in equine and may be congenital or acquired. The intestine is commonly involved in cases of diaphragmatic hernia, and clinical signs are related to the intestinal segment involved and the extension, obstruction may occur from a simple process to a strangulating. Often, clinical signs are characterized by acute abdominal whit severe pain, dyspnea and tachypnea. The diagnosis of diaphragmatic hernia can be difficult, and in most cases only is established during surgery or at necropsy. This paper reports a diaphragmatic hernia case in a quarter horse stallion, with 14 years of age showing acute abdominal signs. The clinical examination showed tachycardia, tachypnea and absence of intestinal motility. Turbidity, increase of leukocytes and protein was observed in the analysis of peritoneal fluid. Exploratory laparotomy was performed, but due to the presence of hemorrhagic mesentery, intestinal ischemia, and irreducible incarceration of the jejunum in epiploic foramen, euthanasia was decided. Furthermore, at necropsy, was observed a diaphragmatic hernia with presence of the small intestine in the thorax.

This manuscript describes the clinical and pathological findings associated with a unilateral horn core carcinoma in a 12- year-old, Nellore cow. Initially the cow presented a small growth within the right horn with consequent hanging of the affected horn and progressive increasein size of the mass, ultimately resulting in a large space occupying tumorous growth. Clinical laboratory evaluations revealed non-regenerative anemia; while bacteriological analyses yielded cultures of Pseudomonnas spp. and Arcanobacterium spp. Histopathology revealed the mass to be consisted predominantly of a well differentiated squamous cell carcinoma with areas of neoplastic glandular epithelium. The anatomic location of the tumor associated with the histopathological findings is consistent with horn core carcinoma of cattle.Este manuscrito descreve os achados clínicos e patológicos associados com um carcinoma da base do chifre de uma vaca da raça Nelore de 12 anos de idade. Inicialmente a vaca apresentou uma pequena massa dentro do seio do corno direito com aumento progressivo no tamanho, que se evidenciou após a fratura do mesmo, que permaneceu pendurado por um pequeno fragmento de pele. Essa lesão resultou em uma enorme massa exuberante. Os exames laboratoriais revelaram anemia arregerenativa; as análises bacteriológicas produziram culturas de Pseudomonnas spp. E Arcanobacterium spp. A avaliação histopatológica revelou que a massa era formada predominantemente pelo carcinoma das células escamosas bem-diferenciado com áreas de neoplasia do epitélio glandular. A localização anatômica do tumor associado aos achados histopatológicos é consistente com o carcinoma da base do chifre.