Células-tronco mesenquimais para tratamento de displasia coxofemoral em cão / Mesenchymal stem cells for treatment of coxofemoral dysplasia in a dog

Background: Coxofemoral dysplasia (CFD) is the abnormal development of the hip joint, mostly affecting large breeds, and is characterized by subluxation or complete luxation of the femoral head. Among the conservative therapeutic options, cell therapies with stem cells for CFD provides potential by the countless possibilities of therapeutic application, especially those related to the chronic and/or degenerative diseases treatment, which could be a key point for the bone and joint repair. The objective was to report a bilateral CFD case in a dog, treated with intra-articular application of mesenchymal stem cells (MSC), with 0, 30, 60 and 90 days, and further evaluations. Case: A 2-year-old male Akita dog was referred to the Veterinary Hospital Harmonia (HVH) located in the city of Recife, Pernambuco, presenting clinical signs of hip pain, lameness and pelvic limbs hopping. By orthopedic examination, pain was observed at the cranial and caudal extension of the pelvic limb, and at flexion, abduction and adduction of the limb, as well as moderate muscle atrophy and presence of joint crackling. By coxofemoral radiography performed in ventrodorsal projection, it were detected bilateral femoral head subluxation, thickening of the femoral neck and the presence of intraarticular osteophytes. These findings are compatible with the degeneration caused by the presence of CFD. Laboratory tests performed such as hemogram and biochemical had no changes. Thus, the patient had intra-articular application of allogeneic MSC, derived from adipose tissue, obtained by private company. For stem cell applications, arthrocentesis of the hip joints was performed one at a time, using a 5 mL syringe and 16G needle for aspiration of 2 mL synovial fluid, for discard and application of stem cells. After aspiration, the syringe containing the MSC were fitted to the 16G needle for the implant. After the...

Quimiodectoma em cão / Chemodectoma in a dog

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. Dogsof brachiocephalic breeds and aged between 7 and 15 years have greater propensity. A neoplasm involves infiltrative growthin the vessels at the heart base, which leads to Congestive Heart Failure (CHF). The definitive diagnosis is performed byhistopathological and/or immunohistochemical examination. The aim was to report a case of chemiodectoma in a dog,showing the disease’s 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, ventralthorax 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 presentedmixed dyspnea and muffled heart sounds. Chest radiography detected an radiopacity increase in pulmonary section andmetastatic neoplastic process associated with pleural and pericardial effusion. Fluid therapy with lactated ringer and posteriorthoracentesis in the right hemithorax region was performed for greater respiratory comfort for the patient. Hematologicalcount 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 diedafter 12 hours when was submitted to necroscopic examination and histopathological evaluation. An infiltrative tumor ofcardiac base was observed invading the light of the right atrium, obstructing the venous return, as well as a large thrombus...

Quimiodectoma em cão / Chemodectoma in a dog

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. Dogsof brachiocephalic breeds and aged between 7 and 15 years have greater propensity. A neoplasm involves infiltrative growthin the vessels at the heart base, which leads to Congestive Heart Failure (CHF). The definitive diagnosis is performed byhistopathological and/or immunohistochemical examination. The aim was to report a case of chemiodectoma in a dog,showing the diseases 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, ventralthorax 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 presentedmixed dyspnea and muffled heart sounds. Chest radiography detected an radiopacity increase in pulmonary section andmetastatic neoplastic process associated with pleural and pericardial effusion. Fluid therapy with lactated ringer and posteriorthoracentesis in the right hemithorax region was performed for greater respiratory comfort for the patient. Hematologicalcount 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 diedafter 12 hours when was submitted to necroscopic examination and histopathological evaluation. An infiltrative tumor ofcardiac base was observed invading the light of the right atrium, obstructing the venous return, as well as a large thrombus...(AU)

Ocorrência simultânea de hemangiossarcoma e mastocitoma de grau II em cão da raça Pitbull / Simultaneous occurrence of hemangiosarcoma and grade II mast cell tumor in a Pit Bull Terrier

Background: The incidence of cutaneous neoplasms in dogs is high and quite variable. Hemangiosarcoma (HSA) and mast celltumor (MCT) are commonly diagnosed neoplasms in isolation; however, reports of concomitant occurrence in a single patientare rare. HSA is a malignant mesenchymal neoplasm of endothelial origin; the spleen is the most commonly affected organ.MCT is a common neoplasm that may affect any region of the body, without predilection for sex, although some breeds haveshown higher incidence. This report describes a case of HSA and MCT in a Pit bull terrier.Case: A 5-year-old white male Pit bull was presented to the Small Animal Clinic of the Federal Rural University of Pernambucowith nodules in preputial region measuring 5.4 x 3.7 cm and an ulcerated nodule in the right lateral thoracic region measuring23.0 x 19.0 x 5.5 cm. The owner reported surgical excision of two previous nodules one year before the consultation, but neitherwere submitted for cytopathological or post-surgical histopathological examination. Two months after the procedure, the nodulesrecurred. Cytopathological examinations of preputial and lateral thoracic nodules were performed, with a suggestive diagnosisfor HSA and MCT, respectively. Due to the unfavorable prognosis and the weakness of the animal, euthanasia was elected.Necroscopic examination revealed an ideal body condition score (4/9), hypertrophy of right pre-scapular and axillary lymphnodes, red hepatization in the apical lobe of the right lung, with multiple, soft and pigmented nodules in the spleen, liver, pancreas and testis. Several tissue samples were collected, conditioned in 10% buffered formaldehyde solution, routinely processedfor histology, and stained with hematoxylin-eosin and toluidine blue. Microscopically, the lateral thoracic nodule consisted ofround cells in cordonal arrangement, with sparse basophilic and discretely granular cytoplasm...

Ocorrência simultânea de hemangiossarcoma e mastocitoma de grau II em cão da raça Pitbull / Simultaneous occurrence of hemangiosarcoma and grade II mast cell tumor in a Pit Bull Terrier

Background: The incidence of cutaneous neoplasms in dogs is high and quite variable. Hemangiosarcoma (HSA) and mast celltumor (MCT) are commonly diagnosed neoplasms in isolation; however, reports of concomitant occurrence in a single patientare rare. HSA is a malignant mesenchymal neoplasm of endothelial origin; the spleen is the most commonly affected organ.MCT is a common neoplasm that may affect any region of the body, without predilection for sex, although some breeds haveshown higher incidence. This report describes a case of HSA and MCT in a Pit bull terrier.Case: A 5-year-old white male Pit bull was presented to the Small Animal Clinic of the Federal Rural University of Pernambucowith nodules in preputial region measuring 5.4 x 3.7 cm and an ulcerated nodule in the right lateral thoracic region measuring23.0 x 19.0 x 5.5 cm. The owner reported surgical excision of two previous nodules one year before the consultation, but neitherwere submitted for cytopathological or post-surgical histopathological examination. Two months after the procedure, the nodulesrecurred. Cytopathological examinations of preputial and lateral thoracic nodules were performed, with a suggestive diagnosisfor HSA and MCT, respectively. Due to the unfavorable prognosis and the weakness of the animal, euthanasia was elected.Necroscopic examination revealed an ideal body condition score (4/9), hypertrophy of right pre-scapular and axillary lymphnodes, red hepatization in the apical lobe of the right lung, with multiple, soft and pigmented nodules in the spleen, liver, pancreas and testis. Several tissue samples were collected, conditioned in 10% buffered formaldehyde solution, routinely processedfor histology, and stained with hematoxylin-eosin and toluidine blue. Microscopically, the lateral thoracic nodule consisted ofround cells in cordonal arrangement, with sparse basophilic and discretely granular cytoplasm...(AU)