Anoftalmia bilateral em cão associada à malformação peniana congênita / Bilateral anophthalmia in dog associated with congenital penile malformation

Background: Anophthalmia refers to the complete absence of an eyeball. It is a very rare congenital condition that affects all breeds of dogs, which may be unilateral or bilateral. Anophthalmia results from a severe developmental deficiency in the primitive forebrain, prior to the formation of the optic sulcus. This condition has a complex etiology, and chromosomal, monogenic, and environmental causes have already been identified. There might be an association between anophthalmia and other congenital abnormalities. This case report aimed to report the case of a male dog with bilateral anophthalmia associated with penile malformation. Case: A 3-year-old male mongrel dog was evaluated in a clinical consultation at the Veterinary Medical Teaching Hospital of the Federal University of Piauí (UFPI) - Teresina - Brazil, with signs of anemia and diarrhea. His vaccinations were not up to date (multiple and anti-rabies), presented ectoparasites (ticks), and showed inappetence. The owner reported that the animal was blind from birth, was already well adapted to its environment, had the company of other animals, and had no access to the street. On clinical examination, the animal had a good body score. The eyelids were bilaterally present with normally developed eyelashes. Both the head and face had a symmetrical appearance, without structural abnormalities, and the palpebral fissures were narrow. When opening the eyelids manually, the presence of the conjunctiva was observed bilaterally, the orbits were shallow, and neither orbit contained the eyeball. Further inspection with an ophthalmic clinical flashlight did not reveal any other ocular structures. The initial diagnosis was suggestive of bilateral anophthalmia. Ultrasound examination of the ocular region confirmed the presence of bilateral anophthalmia. A general physical examination revealed a malformed penis with a persistent penile frenulum. Regarding systemic clinical signs (apathy, inappetence, diarrhea, and anemia), clinical and laboratory examinations led to the suspicion of verminosis. Discussion: The dog in this report had a good body score; however, this type of malformation can generate non-viable puppies. Anophthalmia is an extremely rare congenital ocular malformation, both in humans and companion animals, in which there are no ocular structures in the orbits, and these structures (orbits) in affected individuals are generally small and shallow, as seen in the dog in this report. Ultrasonographic examination confirmed the bilateral anophthalmic condition, being the most accurate method of diagnosing this congenital condition. The animal in this report presented with anophthalmia associated with penile malformation. This type of association until this case report has only been described in humans and mice, and is probably caused by a mutation in the SOX2 gene, which is responsible for the protein of the same name, which makes the maturation of ocular tissues in the primitive forebrain. Thus, it is likely that such congenital alterations are the cause of the malformations observed in this animal. Maternal vitamin A deficiency, a factor known to cause ocular malformations, may also be involved in the etiology of congenital diseases. Nutritional imbalances in dogs are common in the animal's region of origin The dog in this report had a normal life. Although it is a condition that causes blindness, dogs can have a normal life and welfare, even with bilateral anophthalmia.

Demodicose em cães atendidos em um hospital veterinário universitário / Demodicosis in dogs attended in a university veterinary hospital

A sarna demodécica ou demodicose pode ser definida como uma dermatopatia parasitária, caracterizada pela presença exacerbada de ácaros comensais da pele de cães, Demodex spp. Essa doença pode ser classificada clinicamente como localizada ou generalizada, conforme a dimensão e distribuição das lesões. O diagnóstico é realizado por raspado cutâneo profundo. Este estudo teve como objetivo descrever a casuística da demodicose em cães atendidos no Hospital Veterinário da Universidade Federal do Piauí (HVU/UFPI), no período de 2015 a 2017. Foram analisadas 67 fichas sugestivas da doença e, destas, 30 tinham no seu diagnóstico confirmatório a presença do parasito. O levantamento foi obtido através das fichas de atendimento de cães com sarna demodécica, onde incluíam o número de registro, sexo, idade e raça do animal, além da classificação da doença e tratamento realizado. Os resultados indicaram que cães machos apresentaram maior prevalência da enfermidade, representando 63,3% dos casos. A maioria dos animais acometidos eram jovens (53,3%), sendo que os cães sem raça definida (SRD) foram os mais afetados (43,3%), seguidos da raça Pinscher (20,0%). A forma generalizada da doença foi a de maior ocorrência neste estudo (80,0%), e o tratamento oral foi o de maior indicação nas fichas de atendimento dos cães parasitados. Conclui-se que a demodicose foi frequente nos cães atendidos no HVU/UFPI durante o período do estudo, com maior ocorrência em animais jovens, machos, SRD e maior representatividade da forma generalizada da doença.(AU)

Demodectic scab or demodicosis can be defined as a parasite dermatopathy, characterized by the exacerbated presence of dog skin commensal mites, Demodex spp. This disease can be classified as localized or generalized, depending on the size of the lesions. The diagnosis is made by deep scraping of the skin. This study objective to describe cases of demodicosis in dogs attended at the Veterinary Hospital of the Federal University of Piauí (HVU/UFPI), from 2015 to 2017. Sixty-seven records were analyzed suggesting the disease and, of these, thirty had confirmatory diagnosis the presence of the parasite. The survey was obtained through the records of dogs with demodectic scab, which included the registration number, sex, age and race of the animal, besides the classification of disease and treatment performed. The results indicated that male dogs presented a higher prevalence of the disease, representing 63.3% of the cases. The majority of the affected dogs were young (53.3%), and the mixed breed dogs were the most affected (43.3%), followed by the pinscher breed (20.0%). The generalized form of the disease was the most frequent in this study (80.0%) and the oral treatment was the most indicated in the records of care of the dogs. It was concluded that demodicosis was frequent in dogs treated at HVU / UFPI during the study period, with a higher occurrence in young male animals, SRD and greater representativity of the generalized form of the disease. (AU)

Demodicose em cães atendidos em um hospital veterinário universitário / Demodicosis in dogs attended in a university veterinary hospital

A sarna demodécica ou demodicose pode ser definida como uma dermatopatia parasitária, caracterizada pela presença exacerbada de ácaros comensais da pele de cães, Demodex spp. Essa doença pode ser classificada clinicamente como localizada ou generalizada, conforme a dimensão e distribuição das lesões. O diagnóstico é realizado por raspado cutâneo profundo. Este estudo teve como objetivo descrever a casuística da demodicose em cães atendidos no Hospital Veterinário da Universidade Federal do Piauí (HVU/UFPI), no período de 2015 a 2017. Foram analisadas 67 fichas sugestivas da doença e, destas, 30 tinham no seu diagnóstico confirmatório a presença do parasito. O levantamento foi obtido através das fichas de atendimento de cães com sarna demodécica, onde incluíam o número de registro, sexo, idade e raça do animal, além da classificação da doença e tratamento realizado. Os resultados indicaram que cães machos apresentaram maior prevalência da enfermidade, representando 63,3% dos casos. A maioria dos animais acometidos eram jovens (53,3%), sendo que os cães sem raça definida (SRD) foram os mais afetados (43,3%), seguidos da raça Pinscher (20,0%). A forma generalizada da doença foi a de maior ocorrência neste estudo (80,0%), e o tratamento oral foi o de maior indicação nas fichas de atendimento dos cães parasitados. Conclui-se que a demodicose foi frequente nos cães atendidos no HVU/UFPI durante o período do estudo, com maior ocorrência em animais jovens, machos, SRD e maior representatividade da forma generalizada da doença.

Demodectic scab or demodicosis can be defined as a parasite dermatopathy, characterized by the exacerbated presence of dog skin commensal mites, Demodex spp. This disease can be classified as localized or generalized, depending on the size of the lesions. The diagnosis is made by deep scraping of the skin. This study objective to describe cases of demodicosis in dogs attended at the Veterinary Hospital of the Federal University of Piauí (HVU/UFPI), from 2015 to 2017. Sixty-seven records were analyzed suggesting the disease and, of these, thirty had confirmatory diagnosis the presence of the parasite. The survey was obtained through the records of dogs with demodectic scab, which included the registration number, sex, age and race of the animal, besides the classification of disease and treatment performed. The results indicated that male dogs presented a higher prevalence of the disease, representing 63.3% of the cases. The majority of the affected dogs were young (53.3%), and the mixed breed dogs were the most affected (43.3%), followed by the pinscher breed (20.0%). The generalized form of the disease was the most frequent in this study (80.0%) and the oral treatment was the most indicated in the records of care of the dogs. It was concluded that demodicosis was frequent in dogs treated at HVU / UFPI during the study period, with a higher occurrence in young male animals, SRD and greater representativity of the generalized form of the disease.

Ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí, Brazil / Oftalmopatias em cães naturalmente acometidos por leishmaniose visceral em Teresina, PI, Brasil

ABSTRACT: This study aimed to characterize ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí State, Brazil. The diagnosis was made using parasitological exams of the bone-marrow and lymph-node samples. The main ophthalmological findings were uveitis, conjunctivitis, blepharitis, keratitis, and keratoconjunctivitis sicca. Normocytic normochromic anemia was the main hematological finding, followed by thrombocytopenia. Plasma proteins were also considered, and hyperproteinemia, hypergammaglobulinemia, and hypoalbuminemia were observed. Ocular histopathological examination revealed mild inflammation involving lymphocytes, monocytes, and macrophages. Results indicate the need to perform a differential diagnosis to rule out or establish the presence of Leishmania sp. in dogs presenting with ophthalmic lesions in endemic regions.

RESUMO: O presente trabalho teve por objetivo caracterizar as oftalmopatias em cães naturalmente afetados por leishmaniose visceral em Teresina, Piauí. O diagnóstico de leishmaniose foi realizado por exame parasitológico de medula óssea e linfonodos. As principais alterações oftálmicas foram uveíte, conjuntivite, blefarite, ceratite e ceratoconjuntivite seca. Anemia normocítica normocrômica foi a principal alteração hematológica, seguida de trombocitopenia. Em relação às proteínas plasmáticas observou-se hiperproteinemia, hiperglobulinemia e hipoalbuminemia. A histopatologia ocular revelou processo inflamatório moderado constituído por linfócitos, monócitos, neutrófilos e macrófagos. Os resultados da pesquisa apontam para a necessidade de se realizar diagnóstico diferencial para Leishmania sp. em cães que apresentem lesões oftálmicas em regiões endêmicas.

Ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí, Brazil / Oftalmopatias em cães naturalmente acometidos por leishmaniose visceral em Teresina, PI, Brasil

This study aimed to characterize ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí State, Brazil. The diagnosis was made using parasitological exams of the bone-marrow and lymph-node samples. The main ophthalmological findings were uveitis, conjunctivitis, blepharitis, keratitis, and keratoconjunctivitis sicca. Normocytic normochromic anemia was the main hematological finding, followed by thrombocytopenia. Plasma proteins were also considered, and hyperproteinemia, hypergammaglobulinemia, and hypoalbuminemia were observed. Ocular histopathological examination revealed mild inflammation involving lymphocytes, monocytes, and macrophages. Results indicate the need to perform a differential diagnosis to rule out or establish the presence of Leishmania sp. in dogs presenting with ophthalmic lesions in endemic regions.(AU)

O presente trabalho teve por objetivo caracterizar as oftalmopatias em cães naturalmente afetados por leishmaniose visceral em Teresina, Piauí. O diagnóstico de leishmaniose foi realizado por exame parasitológico de medula óssea e linfonodos. As principais alterações oftálmicas foram uveíte, conjuntivite, blefarite, ceratite e ceratoconjuntivite seca. Anemia normocítica normocrômica foi a principal alteração hematológica, seguida de trombocitopenia. Em relação às proteínas plasmáticas observou-se hiperproteinemia, hiperglobulinemia e hipoalbuminemia. A histopatologia ocular revelou processo inflamatório moderado constituído por linfócitos, monócitos, neutrófilos e macrófagos. Os resultados da pesquisa apontam para a necessidade de se realizar diagnóstico diferencial para Leishmania sp. em cães que apresentem lesões oftálmicas em regiões endêmicas.(AU)

Ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí, Brazil / Oftalmopatias em cães naturalmente acometidos por leishmaniose visceral em Teresina, PI, Brasil

This study aimed to characterize ocular diseases in dogs naturally affected by visceral leishmaniasis in Teresina, Piauí State, Brazil. The diagnosis was made using parasitological exams of the bone-marrow and lymph-node samples. The main ophthalmological findings were uveitis, conjunctivitis, blepharitis, keratitis, and keratoconjunctivitis sicca. Normocytic normochromic anemia was the main hematological finding, followed by thrombocytopenia. Plasma proteins were also considered, and hyperproteinemia, hypergammaglobulinemia, and hypoalbuminemia were observed. Ocular histopathological examination revealed mild inflammation involving lymphocytes, monocytes, and macrophages. Results indicate the need to perform a differential diagnosis to rule out or establish the presence of Leishmania sp. in dogs presenting with ophthalmic lesions in endemic regions.

O presente trabalho teve por objetivo caracterizar as oftalmopatias em cães naturalmente afetados por leishmaniose visceral em Teresina, Piauí. O diagnóstico de leishmaniose foi realizado por exame parasitológico de medula óssea e linfonodos. As principais alterações oftálmicas foram uveíte, conjuntivite, blefarite, ceratite e ceratoconjuntivite seca. Anemia normocítica normocrômica foi a principal alteração hematológica, seguida de trombocitopenia. Em relação às proteínas plasmáticas observou-se hiperproteinemia, hiperglobulinemia e hipoalbuminemia. A histopatologia ocular revelou processo inflamatório moderado constituído por linfócitos, monócitos, neutrófilos e macrófagos. Os resultados da pesquisa apontam para a necessidade de se realizar diagnóstico diferencial para Leishmania sp. em cães que apresentem lesões oftálmicas em regiões endêmicas.

Persistent Right Aortic Arch in a Dog

Background: Vascular ring anomalies were congenital malformation of the great vessels, caused by defects in embryogenesis of the aortic arches. In dogs the most common type is persistent right aortic arch (PRAA). The PRAA occurs when the fourth right aortic arch persists instead of left to form the aorta. This malformation causes extraluminal compression of the esophagus up to the base of the heart. The constriction leads to esophageal dilatation secondary, located cranial to the base heart. The food, which can not progress beyond the narrowing, is regurgitated intermittently. Thus, the main clinical sign of disease is regurgitation when the patient starts eating solid foods. Respiratory clinical signs (mainly pneumonia by aspiration) may occur and can complicate the disease. The diagnosis is suspected by history (puppies at weaning) and physical examination. The diagnosis is confirmed by the esophagogram, where the image is characteristic (esophagic dilatation cranial base of the heart). The treatment of the affection is surgical, with transection and ligature of the vascular ring, viewed during thoracotomy by fourth intercostal space. The postoperative management which consists mainly of liquid diet and/or pasty is important for total recovery of the animal. In some cases, the animal must receive a special diet for life to prevent regurgitation. However at long term, most operated animal presents important sequels. These sequelae include respiratory disorders and low development of animal. The objective of the present paper is to relate a case of bitch with persistent right aortic arch, successful treated surgically, without serious clinical consequences. Case: A mongrel bitch with 2 months of age was attended at the Veterinary Hospital of the Federal University of the Piauí, Brazil, with vomiting. At the clinical examination was observed increase in volume in the cervical region.(...)

Persistent Right Aortic Arch in a Dog

Background: Vascular ring anomalies were congenital malformation of the great vessels, caused by defects in embryogenesis of the aortic arches. In dogs the most common type is persistent right aortic arch (PRAA). The PRAA occurs when the fourth right aortic arch persists instead of left to form the aorta. This malformation causes extraluminal compression of the esophagus up to the base of the heart. The constriction leads to esophageal dilatation secondary, located cranial to the base heart. The food, which can not progress beyond the narrowing, is regurgitated intermittently. Thus, the main clinical sign of disease is regurgitation when the patient starts eating solid foods. Respiratory clinical signs (mainly pneumonia by aspiration) may occur and can complicate the disease. The diagnosis is suspected by history (puppies at weaning) and physical examination. The diagnosis is confirmed by the esophagogram, where the image is characteristic (esophagic dilatation cranial base of the heart). The treatment of the affection is surgical, with transection and ligature of the vascular ring, viewed during thoracotomy by fourth intercostal space. The postoperative management which consists mainly of liquid diet and/or pasty is important for total recovery of the animal. In some cases, the animal must receive a special diet for life to prevent regurgitation. However at long term, most operated animal presents important sequels. These sequelae include respiratory disorders and low development of animal. The objective of the present paper is to relate a case of bitch with persistent right aortic arch, successful treated surgically, without serious clinical consequences. Case: A mongrel bitch with 2 months of age was attended at the Veterinary Hospital of the Federal University of the Piauí, Brazil, with vomiting. At the clinical examination was observed increase in volume in the cervical region.(...)(AU)