Aspectos clínicos, cirúrgicos, histológicos e pós-operatórios de oito cadelas com leiomioma vaginal / Clinical, surgical, histological and postoperative aspects in the case of eight bitches with vaginal leiomyoma

O presente trabalho reporta as características clínicas e cirúrgicas de oito casos de cadelas portadoras de leiomioma vaginal, com histórico de aumento de volume na região perineal, aparecimento de massa pela vulva, disquezia, tenesmo e disúria. As pacientes foram submetidas à cirurgia de episiotomia para ressecção da massa neoplásica, e em quatro casos foi necessária a ovariossalpingo-histerectomia. Porém, uma delas apresentou recidiva, e, no segundo procedimento cirúrgico de exérese de neoformação, o histopatológico diagnosticou leiomiossarcoma. A paciente ainda apresentou mais duas recidivas, até o proprietário optar pela eutanásia. Decorridos quatro meses, as sete cadelas diagnosticadas com leiomioma não apresentaram recidiva, e os proprietários relataram ausência de sinais relacionados com a doença descrita. Conclui-se que a episiotomia para ressecção da massa vaginal e a ovariossalpingo-histerectomia nas cadelas inteiras nos casos de tumores vaginais benignos são tratamentos satisfatórios, com bom prognóstico, ao contrário do leiomiossarcoma.

This study reports the clinical and surgical procedures of eight cases of bitches with vaginal leiomyoma. All animals presented increased volume in the perineal region, and exteriorization of the vulva, dyschezia, tenesmus and dysuria. The patients underwent episiotomy surgery for resection of the neoplastic mass, and ovariosalpingohisterectomy in four cases. However, one had recurrence on the second surgical procedure for removal of neoformation, histopathological diagnosed leiomyosarcoma, the patient also had two more relapses, until the owner chose euthanasia. After four months, the seven dogs diagnosed with leiomyoma showed no recurrence and the owners reported no signs of the disease described. We concluded that episiotomy for vaginal mass resection combined with ovariohysterectomy in cases of benign vaginal tumors have shown satisfactory treatment with good prognostic.

Vaginal fibrosarcoma in cow [A case report]

A five-year-old Holstein cow with a history of vaginal prolapse was admitted to the Large Animal Clinic, Faculty of Veterinary Medicine, University of Tabriz. According to the owner, she had a 5-month history of vaginal prolapse and frequent sanguineous discharge from the vagina. Appetite was normal and its last parturition was two months ago. Clinical examination revealed a tumor like mass that attached to the vaginal roof and partly protruded through the vagina without any vaginal prolapse. After epidural anesthesia, the mass was surgically removed with some of the surrounding tissue. The dimensions of the mass were 5.2 x 4 x 3.4 cm. Macroscopically, it was relatively well circumscribed with a lobulated and ulcerated surface. In cut section, the mass was homogenously creamy in color. There were no foci of necrosis or hemorrhage. Microscopically, the growth was composed of spindle-shaped flbroblastic type tumor cells that formed interlacing and intersecting bundles. The neoplastic cells showed pleomorphism, karyomegaly and slight nuclear hyperchromatism. The mitotic index was less than five. Based on the site, biological behavior, immunohistochemistry results, macroscopic and microscopic characteristics, the mass was diagnosed as a well-differentiated fibrosarcoma. This is the first report of cow vaginal fibrosarcoma from Iran

Neoplasias en aparato reproductor en perras: estudio restrospectivo a 6 años / Neoplasias in the reproductive system in female dogs: retrospective study of 6 years

Las noeplasias en tracto genital son poco frecuentes en perras, y suelen estar asociadas a problemas reproductivos secundarios. El objetivo del presente estudio fue analizar la frecuencia de neoplasias en el aparato reproductor de perras en México, haciendo una revisión retrospectiva de biopsias remitidas al Departamento de Patología de la Facultad de Medicina Veterinaria y Zootecnia de la Universidad Nacional Autónoma de México, desde 1988 hasta 1993. Con ese fin se revisaron 2062 biopsias, de las cuales 117 (5.6 por ciento) correspondieron a neoplasias en el aparato reproductor. Se localizaron 48 neoplasias en vagina (41.02 por ciento), 40 en vulva (34.18 por ciento), 18 en ovario (15.38 por ciento) y 11 en útero (9.4 por ciento). De acuerdo con el tipo histológico, las neoplasias más frecuentes fueron: 8 casos de tumor de células de la granulosa (44.4 por ciento) en ovario, 5 casos de adenoma (45.5 por ciento) en útero y 31 (64.6 por ciento) y 22 (55 por ciento) casos de tumor venéreo transmisible en vagina y vulva, respectivamente. Las edades de los animales fueron de más de 5 años. Los datos encontrados concuerdan con lo referido en la literatura