ABSTRACT
<p><b>INTRODUCTION</b>This study aimed to analyse the concordance rate, sensitivity, specificity, positive predictive value (PPV) and negative predictive value of core needle biopsy (CNB) and subsequent surgical specimen (SS) in assessing levels of oestrogen receptor (ER), progesterone receptor (PgR) and human epidermal growth factor receptor 2 (HER2/neu). It also evaluated the revised American Society of Clinical Oncology/College of American Pathologists (ASCO/CAP) guidelines for ER/PgR positivity.</p><p><b>METHODS</b>We analysed the breast cancer database of KK Women's and Children's Hospital, Singapore, from 1 June 2005 to 30 December 2012. Invasive breast cancer patients who had CNB and subsequent SS were included.</p><p><b>RESULTS</b>A total of 560 patients were included. The concordance of ER, PgR and HER2/neu positivity between CNB and SS was 96.1%, 89.1% and 96.8%, respectively. When the 'ER ≥ 10% positive' group was compared with the 'ER ≥ 1% positive' group, specificity increased from 79.7% to 92.5% and PPV increased from 93.9% to 97.5%. When the 'PgR ≥ 10% positive' group was compared with the 'PgR ≥ 1% positive' group, specificity increased from 84.2% to 89.3% and PPV improved from 89.7% to 92.9%. The revised ASCO/CAP guidelines decreased discordant results by > 50% for ER and by 18.2% for PgR.</p><p><b>CONCLUSION</b>CNB has high concordance with SS in the evaluation of the molecular profile of invasive breast cancer. Thus, molecular evaluation does not need to be repeated with SS except for ER-, PgR- and HER2/neu-negative CNB results. The revised ASCO/CAP guidelines resulted in more precise ER and PgR status on CNB.</p>
Subject(s)
Female , Humans , Middle Aged , Automation , Biopsy, Large-Core Needle , Breast Neoplasms , Diagnosis , Pathology , Immunohistochemistry , Predictive Value of Tests , Receptor, ErbB-2 , Metabolism , Receptors, Estrogen , Metabolism , Receptors, Progesterone , Metabolism , Sensitivity and Specificity , SingaporeABSTRACT
Tem sido demonstrado que o número de linfonodos obtidos em peças cirúrgicas de câncer colorretal é fundamental para o adequado estadiamento da doença e, consequentemente, para a obtenção de melhores resultados oncológicos. A percepção de diferenças no número de linfonodos dissecados em peças cirúrgicas de câncer colorretal pelos mesmos cirurgiões em hospitais diferentes motivou este estudo. O objetivo do presente estudo foi avaliar se há diferença no número de linfonodos e em determinados parâmetros histopatológicos em peça cirúrgica de pacientes com câncer colorretal operados por dois cirurgiões que atuam tanto em hospital universitário, como em hospital privado. MÉTODO: Foram avaliados retrospectivamente 122 pacientes, obtendo-se dados relativos a tipo de instituição (universitária versus privada), aspectos demográficos, estadiamento, localização do tumor, tipo de operação, via de acesso (aberta versus laparoscópica ), indicação de radioterapia, número de linfonodos dissecados, número de linfonodos positivos e negativos, assim como o tipo histológico, presença de invasões vascular, linfática e perineural e resposta linfocítica). RESULTADOS: Sessenta e cinco pacientes foram operados em instituição universitária e 57, em instituição privada. Não houve diferença entre os grupos quanto à idade, gênero, estadiamento, localização do tumor, indicação de radioterapia e tipo de operação. A via laparoscópica foi mais comum na instituição universitária. A mediana de linfonodos dissecados foi de 25 (P25-75: 15-34) na instituição universitária versus 15 (P25-75;12-17) (p<.0001). A média de linfonodos positivos foi de três na instituição universitária e de um na privada. O achado de 12 ou mais linfonodos foi mais comum em instituição universitária (55/64 versus 40/58; p=.024). A presença da informação de invasões linfática, vascular e perineural foi mais comum na instituição universitária. CONCLUSÃO: Mantendo a mesma técnica cirúrgica e com população...
It has been demonstrated that lymph nodes harvest from surgical specimens of colorectal cancer is one of the most important features for appropriate staging of the disease and to plain the best treatment. The perception of differences in the number of harvest lymph nodes in surgical specimens of colorectal cancer by the same surgeons in different hospitals motivated this investigation. The aims of this study was to assess whether there is difference in the number of lymph nodes and some histopathological features in surgical specimens of colorectal cancer obtained by two surgeons who work both in a university hospital and in a private one. METHODS: We retrospectively evaluated 122 patients, obtaining data on the type of institution (university or private), demographic features, staging, tumor site, histological type, open or laparoscopic access, indication of radiotherapy, number of harvest lymph nodes, presence of vascular, lymphatic and neural invasions. RESULTS: Sixty-five patients were operated in a university institution and 57 in two private institutions. There was no difference between groups in terms of age, stage, tumor site, details of radiotherapy and type of operation. The laparoscopic route was more common in the university institution. The median of lymph nodes harvested was 25 (P25-75: 15-34) in the university institution and 15 in the private ones (P25-75, 12-17) (p <.0001). The finding of 12 or more lymph nodes was more common in academic institution (55/65 versus 40/57, p =. 024). The presence of information of lymphatic, vascular and perineural invasion was more common in the university institution. CONCLUSION: Keeping the same surgical technique and with comparable population of patients, there was considerable difference in the number of lymph nodes harvested between university and private institutions, as like as the report of other relevant data for the histopathological staging, which impacts indication for adjuvant...
Subject(s)
Humans , Hospitals, Private , Hospitals, University , Laparoscopy , Lymph Nodes , Neoplasm Staging , Colorectal Neoplasms/pathologyABSTRACT
Se presenta mujer de 46 años de edad con dolor lumbar y síndrome general a quien se le realizaron exámenes complementarios y Tomografía axial computarizada que arrojó la presencia de tumor en el espacio retroperitoneal. Posteriormente, la paciente es intervenida. Se envía el especimen quirúrgico al departamento de Anatomía Patológica. Nos motivamos en la presentación porque la poca frecuencia en esta localización ocasiona diagnóstico controvertido, pues las contrapartes malignas son las que toman la primacía. Unimos además, la sintomatología acompañante y el resultado de la imagenología practicada hace sospechar el diagnóstico de malignidad. Finalmente, queríamos referir que, a pesar del tamaño del tumor, los síntomas compresivos que ocasionó, y el resultado de Tomografía axial computarizada que hicieron pensar en la posibilidad de la malignidad desde el punto de vista clínico, nos sorprendió que se tratara de un tumor benigno de partes blandas.
We report a 46 years age, female with lumbar pain and general syndrome whom was achieved several tests and computed tomography scan that releaved the presence of tumour in the retroperitoneal space. Later ,she was submitted to surgical intervention. Surgical specimen was sent to the Pathological Anatomy department . We gave a reason for the presentation of that due to its controversial diagnosis and a few frequency in this site where the hightest frequency belongs to the malign counterpart neoplasms .We also takes into account the symptons and the result of the computed tomography scan that it thougth us of the malignant diagnosis from clinical point of view but we have very surprised that it was a benign tumour of soft parts.