Sensibilidade da citoinclusão (PAAF) para detecção de CK5, RE e RP no carcinoma primário de mama na cadela

• Autor(a) principal: Silveira, Tatiany Luiza [UNESP]
• Data de Publicação: 2015
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://hdl.handle.net/11449/134113
• topic: Cão - Doenças; Cancer em cão; Estrógenos - Receptores; Progesterona; Imunohistoquímica; Immunohistochemistry; Dogs

Breast carcinoma in a dog is a disease relatively frequent in bitches of 10 years old, displays important morbidity and evolve to death. The cell block for the diagnosis of injury in women is the method of choice in the investigation, because it provides subsidies to provide for response to therapy. However, for the dog is unknown the application of this technique, therefore, this study aimed to correlate the morphological patterns of canine mammary tumors between cell block technique and surgical specimen and compare the immunohistochemical marking of ER, PR and CK5 between the two methods in 25 samples. The cell block and surgical specimens were submitted to histological processing, preparation of slides for HE and subsequent immunohistochemistry (IQ) for estrogen receptor α (ER), progesterone (PR) and cytokeratin 5 (CK5). Were considered positive for ER and PR cases where there was marking on more than 1% of neoplastic cells and for CK5 the cases where there was marking on more than 10% of neoplastic cells. The level of agreement between the cell block and the surgical specimen was 86.9% for CK5 and 82.6% for the RE. For the HE staining was 100% agreement for the diagnosis of cancer between the techniques. Immunohistochemistry showed a sensitivity of 85.71%, 95.45% and 100% and Cohen's Kappa index of 0.78, 0.84, and 0.95 for ER, PR and CK5 respectively, and 100% specificity and p <0.01 for all three markers. Therefore the citoinclusão it is an affordable method, fast and low cost, which offers high sensitivity in immunohistochemical marker and in cytomorphological diagnosis of mammary carcinoma in female dogs