The skin of donkeys and mules represents a promising source of income; however, cultural, productive, and infectious factors can directly interfere with the quality of the integumentary tissue and well-being of these species. The objective of this study is to present a literature review on equine dermatopathies. This literature review included scientific articles related to equine medicine and breeding according to pre-established search terms and expressions published in recently articles. The evaluation of the clinical and pathological behavior of dermatopathies implies the use of control strategies and the recognition of pathological patterns that may be particular to the species.

A 4-mo-old northern red-shouldered macaw (Diopsittaca nobilis) was admitted to the veterinary hospital of the Arruda Câmara Zoo, in the State of Paraiba, Brazil, for investigation of an orbital mass. Given rapid progression and lack of response to treatment, the bird was euthanized, and an autopsy was performed. Histologically, the mass consisted of a retrobulbar invasive tumor characterized by tubular and rosette-like structures, with interspersed heteroplastic tissues, such as aggregates of neuroglial cells and islands of hyaline cartilage. The tumor was immunopositive for pancytokeratin, GFAP, NSE, and S100. These findings were compatible with an ocular teratoid medulloepithelioma, a neoplasm best described in humans but also reported rarely in young cockatiels and African Grey parrots.

The Puma yagouaroundi (cat-Moorish) is a feline that has wide geographic distribution in Brazil, can be found in various biomes. In the literature there has been few studies on their gross anatomy. The objective was the macroscopic description of the male reproductive system in order to obtain information that might be useful to reproductive management of the species. The study was conducted in a male body donated to Veterinary Anatomy Laboratory at the Veterinary Hospital of the Federal University of Campina Grande. The animal was fixed in 10% formal for further dissection and description of the male reproductive system. the following functional structures of the male genital tract of the cat-Moorish were identified: scrotum, penis, testicles, epididymis, vas deferens and accessory genital glands, identifying only the prostate, not having the bulbourethral and vesicular glands. The scrotum, with its internal components is located in subanal region. The testes showed ovoid shape, positioned perinealmente within the scrotum. The vas deferens comprises a long structure, continuous tail of the epididymis, ending up in craniodorsal surface of the prostate. The penis proved to be a short body, flattened side-to-side with the presence of spicules and located within the prepuce.

Anim Reprod, vol.15, n4, p.1199-1204, 2018

Understanding primate helminth fauna through the characterization of the associated diseases and parasitism, clinicopathological behavior, and parasite-host relationship is crucial in determining the impact of parasitic infections on free-living and captive species. The present study aimed to describe the primary clinical and anatomopathological aspects of parasitism in non-human primates (NHP). Necropsy records of NHPs diagnosed with endoparasitosis at the Veterinary Pathology Laboratory of the “Universidade Federal da Paraíba” were reviewed to obtain epidemiological, clinical, and pathological data, while samples were collected for parasitological identification at the time of necropsy. All animals were obtained from the cities of Cabedelo and João Pessoa, Paraíba, Brazil, from screening and monitoring centers for animals seized from illegal trafficking in this state. Twenty-four cases of gastrointestinal and hepatobiliary parasites affecting primate species belonging to species of the Sapajus and Callithrix genera were identified. In contrast, Molineus torulosus was identified in the intestinal serosa of 16 animals. Further, there were five cases of Trypanoxyuris callithrix, two cases of Platynosomum illiciens infection, and one case of Dipetalonema gracile. The clinical and pathological behaviors of these diseases ranged from asymptomatic infections, considered based on necropsy findings in 14 cases, to cases with characteristic clinical manifestations associated with the cause of death of the animals in 10 of the 24 cases. Identification of the clinical behavior and pattern of pathological lesions can contribute to a better understanding of the parasite-host relationship and aid in the adequate diagnosis of these diseases.

This case study describes the cytological and histopathological findings of cutaneous masses in a bovine, including a peripheral nerve sheath tumor (PNST), vaccine-associated granulomatous inflammation, and eosinophilic inflammation due to parasitosis. A six-year-old undefined cow (SRD) presented with heterogeneous cutaneous lesions including multiple nodules in the left paralumbar fossa, bilaterally at the withers, and scattered along the dorsum, limbs and near the tail; some lesions were associated with ticks. Cytology of these nodules showed benign mesenchymal neoplasia (paralumbar fossa), granulomatous and pyogranulomatous inflammation (withers) and keratin (dorsum). Histopathology, in this order, confirmed PNST, post-vaccination granuloma, and eosinophilic dermatitis. A peripheral nerve sheath tumor was suspected based on the histological findings, showing a well-delineated proliferation of fusiform cells arranged in plexiform structures, which appeared red by Masson's Trichrome stain. The diagnosis was confirmed by immunohistochemistry (anti-S100 antibody). Vaccine reaction often occurs in cattle, and cytological examination is sufficient to determine the inflammatory process. Eosinophilic dermatitis is usually accompanied by perivascular inflammation and reflects the exfoliative process by the oral apparatus of the parasite.