Resultado da pesquisa (1)
Termo utilizado na pesquisa Oliveira LB
#1 - Causes of ovariectomy in bitches: 109 cases
Abstract in English:
One hundred and nine canine ovaries were collected by ovariectomy and analyzed by histopathology. Sixty-three lesions were neoplastic (57.8%), 41 were cystic (37.61%), and five consisted of circulatory changes (4.59%). Follicular cysts (29/109, 26.6%) were the most commonly diagnosed lesion, followed by granulosa cell tumor (27/109, 24.77%), papillary adenocarcinoma (16/109, 13.76%), dysgerminoma (9/109, 8.26%), cystic corpora lutea (9/109, 8.26%), papillary cystadenoma (4/109, 3.67%), different multiple cysts (3/109, 4.92%), hemorrhage (3/109, 2.75%), malignant mesenchymal neoplasm (2/109, 1.83%), luteoma (2/109, 1.83%), vascular hamartoma (2/109, 1.83%), and one case each of the following neoplasms (1/109, 0.92%): leiomyoma, leiomyosarcoma, and teratoma. The cases were predominantly diagnosed in mixed-breed dogs (22/109), Shih-Tzu (15/109), Poodle (9/109) and Yorkshire Terrier (9/109), with ages ranging from 1 to 18 years (mean=9.1 years). Ovariectomy was performed for three main reasons: elective surgery (46/109), ultrasonographic evaluation (23/109) and reproductive clinical signs (24/109). The most common clinical signs included vaginal discharge (12/109) and irregular estrus (5/109). In addition, the affected animals showed the following uterine lesions: pyometra (23/109) and cystic endometrial hyperplasia (12/109). This study demonstrated that neoplasms and cysts are common lesions in canine ovaries obtained via ovariectomy and that these alterations do not necessarily result in reproductive or specific clinical signs.
Abstract in Portuguese:
Cento e nove ovários caninos foram coletados por ovariectomia e analisados por histopatologia. Sessenta e três lesões (57,8%) eram neoplásicas, 41 císticas (37,61%) e cinco consistiam de alterações circulatórias (4,59%). Cistos foliculares (29/109; 26,6%) foram as lesões mais comumente diagnosticadas, seguidas por tumor de células da granulosa (27/109; 24,77%), adenocarcinoma papilar (16/109; 13,76%), disgerminoma (9/109; 8,26%), cisto do corpo lúteo (9/109; 8,26%), cistoadenoma papilar (4/109; 3,67%), cistos múltiplos diferentes (3/109; 4,92%), hemorragias (3/109; 2,75%), neoplasia mesenquimal maligna (2/109; 1,83%), luteoma (2/109; 1,83%), hamartoma vascular (2/109; 1,83%), e um caso cada dos seguintes neoplasmas (1/109; 0,92%): leiomioma, leiomiossarcoma e teratoma. Os casos foram predominantemente diagnosticados em cães sem raça definida (22/109), Shih-Tzu (15/109), Poodle (9/109) e Yorkshire Terrier (9/109), com idade variando de 1 a 18 anos (média=9,1 anos). As ovariectomias foram realizadas por três motivos principais: cirurgia eletiva (46/109), avaliação ultrassonográfica (23/109) e sinais clínicos reprodutivos (24/109). Os sinais clínicos mais frequentes incluíram corrimento vaginal (12/109) e cios irregulares (5/109). Adicionalmente, os animais afetados apresentaram as seguintes lesões uterinas: piometra (23/109) e hiperplasia endometrial cística (12/109). O presente estudo demonstrou que neoplasmas e cistos são lesões comuns em ovários caninos obtidos por ovariectomia e que nem sempre as mesmas conduzem a sinais clínicos reprodutivos e específicos.
