No abstract

The hemoncose is an important parasitic disease to livestock, being the species sheep and goats the most affected. This disorder is caused by the nematode Haemonchus sp. abomasal parasite, measuring 1 to 2.5 cm. This is the most pathogenic helminthes, causing reduction of weight gain, severe anemia, edema of the gastric mucosa promoting decreasing the absorption of nutrients, external swelling called "edema of dewlap", and it’s characteristic signs of hemoncose, besides causing death in severe parasitosis. The aim of this study was describe the abomasal parasite fauna and sexual parasitism with Haemonchus contortus. Abomasal samples were collected after slaughter of goats, being recovered a total of 12460 helminths. The slaughtered animals were observed before and after slaughter. Before the slaughter were observed hair bristly and opaque, beyond severe anemia. After killing was observed abomasal parasitism by H.contortus and T.axei, where the parasitic load of H. contortus was accounted for more than 98% of parasitism, being equivalent the relation between male and female, in addition of the parasitism was observed mucosal lesions caused by fixation of nematode in abomasum, and pale carcass.

ResumoO estudo morfométrico permite a observação de variações no tamanho de estruturas consideradas importantes para identificação de ectoparasitos que acometem os animais selvagens. Nesta linha, o presente trabalho objetivou delimitar algumas áreas na placa esternal do Phthiraptera Gliricola quadrisetosa e realizar a morfometria para complementar a descrição desta estrutura considerada importante para taxonomia deste piolho. Utilizou-se 30 espécimes fêmeas de G. quadrisetosa recuperados de Galea spixii. Os piolhos

The original version of this article, published on October 12, 2020, contained a mistake. The spelling of the title was incorrect. The original article has been corrected. Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Background: The chemodectoma is a rare neoplasm that originates from chemoreceptors located mainly in the aortic body, and carotid body and sinus, and responsible for detecting variations in blood pH, oxygen pressure and carbon dioxide. Dogs of brachiocephalic breeds and aged between 7 and 15 years have greater propensity. A neoplasm involves infiltrative growth in the vessels at the heart base, which leads to Congestive Heart Failure (CHF). The definitive diagnosis is performed by histopathological and/or immunohistochemical examination. The aim was to report a case of chemiodectoma in a dog, showed the disease clinical characteristics.Case: A 13-year-old male undefined breed dog was examinated in the medical clinic of small animal of Veterinary Hospital, Federal Rural University of Pernambuco (UFRPE) with respiratory effort, hyporexia, and edema in face, cervical, ventral thorax and thoracic limbs, with thirty days evoluted. About physical examination, we observed cachexia, orthopneic position, cyanosis and edema with a positive Godet sign, as well as 8% dehydration degree. Thoracic auscultation presented mixed dyspnea and muffled heart sounds. Chest radiography detected an radiopacity increase in pulmonary section and metastatic neoplastic process associated with pleural and pericardial effusion. Fluid therapy with lactated ringer and posterior thoracentesis in the right hemithorax region was performed for greater respiratory comfort for the patient. Hematological count and biochemical profiles stated normochromic normocytic anemia, relative and absolute lymphopenia, thrombocytopenia, as well as increased alanine aminotransferase (ALT) and aspartate aminotransferase (AST). The patient died after 12 hours when was submitted to necroscopic examination and histopathological evaluation. An infiltrative tumor of cardiac base was observed invading the light of the right atrium, obstructing the venous return, as well as a large thrombus located in the left ventricle and diffuse nodules in the lungs. Hydrothorax and hydroperitoneum were observed with serous fluid, with hepatic, renal and brain congestion, and duodenum hemorrhage. Histologically, the tumor was characterized as a chemodectoma with pulmonary metastasis.Discussion: Cardiac tumors are uncommon for canine population. A study sampled 729,265 dogs with observed incidence reaching 0.19%. The most common type is hemangiosarcoma with 69%, followed by chemiodectoma and lymphoma. Authors describe predisposed brachycephalic breeds such as Boxer, Boston Terrier and French Bulldog. In our case, the patient had elongated snout and undefined breed. Deregulation of chemoreceptors, which detect changes in pH and partial oxygen and carbon dioxide pressures, can result in hyperpnea and dyspnoea. Edema represents a deficit in venous return from the cranial and cervical regions, with consequent increase in hydrostatic pressure and liquid leakage into the thoracic cavity and subcutaneous tissue, thus inferring the Caudal Vena Cava Syndrome (CVCS). Tumors from the cardiac base, integrated with the large arteries insertion and adjacent to the atria, can cause pericardial effusion observed in this case. Chemodectomas are described as essentially benign tumors with low metastatic potential. In this case, pulmonary metastasis was detected. Surgical treatment is recommended when feasible. In this case, the patient had late veterinary care, in addition to the contraindication for surgery by the lung metastasis presence.