BACKGROUND: This is a multicentre, European, prospective trial evaluating the diagnostic accuracy of One Step Nucleic Acid Amplification (OSNA) compared to sentinel lymph nodes histopathological ultrastaging in endometrial cancer patients. METHODS: Centres with expertise in sentinel lymph node mapping in endometrial cancer patients in Europe will be invited to participate in the study. Participating units will be trained on the correct usage of the OSNA RD-210 analyser and nucleic acid amplification reagent kit LYNOAMP CK19 E for rapid detection of metastatic nodal involvement, based on the cytokeratin 19 (CK19) mRNA detection. Endometrial cancer patients ≥ 18 years listed for surgical treatment with sentinel lymph node mapping, with no history of other types of cancer and who provide a valid written consent will be considered potentially eligible for the study. However, they will only be enrolled if a successful sentinel lymph node mapping is retrieved. Each node will be processed according to the study protocol and assessed by both OSNA and ultrastaging. DISCUSSION: The accuracy of OSNA (index test) will be assessed against sentinel lymph node histopathological ultrastaging (reference test). This European study has the potential to be the largest study on the use of OSNA in endometrial cancer to date. OSNA could represent a modern diagnostic alternative to sentinel lymph node ultrastaging with the added benefits of standardisation and fast results. TRIAL REGISTRATION: The study was registered in the German Clinical Trial Register - Nr. DRKS00021520, registration date 25th of May 2020, URL of the trial registry record: https://drks.de/search/en/trial/DRKS00021520 .
- Klíčová slova
- Endometrial cancer, OSNA, Sentinel lymph nodes, Ultrastaging,
- MeSH
- biopsie sentinelové lymfatické uzliny metody MeSH
- keratin-19 genetika MeSH
- lidé MeSH
- lymfatické metastázy * diagnóza patologie MeSH
- lymfatické uzliny patologie MeSH
- multicentrické studie jako téma MeSH
- nádory endometria * patologie genetika diagnóza MeSH
- prospektivní studie MeSH
- sentinelová uzlina * patologie MeSH
- staging nádorů MeSH
- techniky amplifikace nukleových kyselin * metody MeSH
- Check Tag
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- protokol klinické studie MeSH
- Geografické názvy
- Evropa MeSH
- Názvy látek
- keratin-19 MeSH
AIMS: Endometrial cancer (EC) is the most common gynecological cancer worldwide and its incidence is rising. The cornerstone of its management is surgical treatment with nodal staging. A monocentric study investigating the potential of the molecular biology method of one-step nucleic acid amplification (OSNA) in sentinel lymph node (SLN) analysis was conducted at our institution between April 2016 and January 2018. Histopathological ultrastaging was used as the reference standard for SLN examination and OSNA as the index test. The aim of this study was to assess the long-term outcome of patients with discordant SLN and OSNA results. To our knowledge, this is the first study exploring this issue. METHODS AND RESULTS: Patients were followed in line with the current ESMO/ESGO/ESTRO recommendations. The institutional electronic database was retrospectively searched for patients' follow-up data from April 2016 till March 2023. Only patients who provided a written valid consent and had a positive OSNA and negative ultrastaging of their SLN analysis were included in the study. The primary endpoint was the retrospective analysis of their clinical outcome. Data from 58 patients enrolled into our previous study were reviewed and 12 discordant patients who met the inclusion criteria for this study were identified. The median follow-up was 83 months. Disease recurrence was detected in 3 (25%) patients, two of these were nodal and both patients died. One patient had a solitary lung metastasis which was surgically treated, and the patient was disease-free during the whole study period. CONCLUSION: The recurrence rate of patients included in the study was in the intermediate-high and high-risk group range, and hence, higher than expected based on ultrastaging results. Furthermore, benign epithelial inclusions do not seem to adversely affect OSNA SLN analysis in EC patients.
- Klíčová slova
- OSNA, endometrial cancer, follow‐up, sentinel node,
- MeSH
- biopsie sentinelové lymfatické uzliny * MeSH
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- lokální recidiva nádoru patologie genetika epidemiologie MeSH
- lymfatické metastázy patologie diagnóza MeSH
- nádory endometria * genetika patologie chirurgie MeSH
- následné studie MeSH
- retrospektivní studie MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- sentinelová uzlina * patologie chirurgie MeSH
- staging nádorů * MeSH
- techniky amplifikace nukleových kyselin * metody MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- srovnávací studie MeSH
Sentinel lymph node biopsy (SLNB) has become the preferred method of surgical pathological nodal staging of early breast cancer by the end of the nineties. As the most likely sites of metastasis, the SLNs allow a more precise staging, and indeed gross sectioning, step sectioning, immunohistochemistry, and molecular staging methods have been used to disclose metastatic involvement of these lymph nodes. This review summarizes the backgrounds of SLNB, trends in related surgery and pathology. It also gives an insight into European National recommendations related to SLN and divergent daily practices in European pathology departments, on the basis of replies to questionnaires from 84 pathologists from 38 European countries. The questionnaires revealed the post-neoadjuvant setting as an area where a significant minority of pathologists report less confidence in classifying residual nodal involvement into TNM categories. The review also summarizes the neoadjuvant therapy-related aspects of SLNB.
- Klíčová slova
- Breast cancer, Lymph nodes, Neoadjuvant treatment, Questionnaire, Sentinel lymph nodes,
- MeSH
- axila patologie MeSH
- biopsie sentinelové lymfatické uzliny MeSH
- lidé MeSH
- lymfadenektomie MeSH
- lymfatické metastázy diagnóza patologie MeSH
- lymfatické uzliny patologie MeSH
- nádory prsu * patologie MeSH
- neoadjuvantní terapie MeSH
- sentinelová uzlina * patologie MeSH
- staging nádorů MeSH
- Check Tag
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
AIMS: Pathological evaluation of lymphadenectomy specimens plays a pivotal role in accurate lymph node (LN) staging. Guidelines standardising the gross handling and reporting of pelvic LN dissection (PLND) in prostate (PCa) and bladder (BCa) cancer are currently lacking. This study aimed to establish current practice patterns of PLND evaluation among pathologists. METHODS AND RESULTS: A web-based survey was circulated to all members of the European Network of Uropathology (ENUP), comprising 29 questions focusing on the macroscopic handling, LN enumeration and reporting of PLND in PCa and BCa. Two hundred and eighty responses were received from pathologists throughout 23 countries. Only LNs palpable at grossing were submitted by 58%, while 39% routinely embedded the entire specimen. Average LN yield from PLND was ≥10 LNs in 56% and <10 LNs in 44%. Serial section(s) and immunohistochemistry were routinely performed on LN blocks by 42% and <1% of respondents, respectively. To designate a LN microscopically, 91% required a capsule/subcapsular sinus. In pN+ cases, 72% reported the size of the largest metastatic deposit and 94% reported extranodal extension. Isolated tumour cells were interpreted as pN1 by 77%. Deposits identified in fat without associated lymphoid tissue were reported as tumour deposits (pN0) by 36% and replaced LNs (pN+) by 27%. LNs identified in periprostatic fat were included in the PLND LN count by 69%. CONCLUSION: This study highlights variations in practice with respect to the gross sampling and microscopic evaluation of PLND in urological malignancies. A consensus protocol may provide a framework for more consistent and standardised reporting of PLND specimens.
- Klíčová slova
- bladder cancer, lymph node, lymphadenectomy, prostate cancer,
- MeSH
- chirurgická patologie metody normy MeSH
- internet MeSH
- lidé MeSH
- lymfadenektomie * MeSH
- lymfatické metastázy * diagnóza patologie MeSH
- nádory močového měchýře * patologie MeSH
- nádory prostaty * patologie MeSH
- odběr biologického vzorku metody normy MeSH
- průzkumy a dotazníky MeSH
- staging nádorů metody normy MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Evropa MeSH
INTRODUCTION: The aim of this article is to compare the sensitivity of detecting micrometastases in hilar and mediastinal lymph nodes in case of primary (non-small cell) and secondary (metastases of colorectal carcinoma) pulmonary tumours using standard histopathological examination with haematoxylin-eosin staining, immunohistochemistry examination with Anti-Cytokeratin 19 antibody and examination based on the One-Step Nucleic Acid Amplification method. METHOD: During radical surgical treatment of primary non-small cell lung carcinoma and pulmonary metastases of colorectal carcinoma, hilar and mediastinal lymph nodes of 100 patients enrolled in the study in the period from 2015 to 2017 were extracted based on a standard classification. These lymph nodes were subsequently divided along the longitudinal axis into 4 identical parts where part one and three on the left were intended for examination based on the One-Step Nucleic Acid Amplification method, whereas parts two and four were subjected to histopathological examination. In evaluating the respective parts of the nodes by histological examination, the nodes were first examined by a standard procedure that involves haematoxylin-eosin staining, followed by immunohistochemistry examination with Anti-Cytokeratin 19 antibody. The One-Step Nucleic Acid Amplification method was performed in the kit supplied by Sysmex (Kobe, Japan) and is based on the detection of cytokeratin 19 mRNA (messenger ribonucleic acid) by reverse transcription coupled with isothermal amplification. RESULTS: A total of 1,426 lymph nodes of the patients enrolled in the study were extracted and examined using the above mentioned methodology. In 78 patients (78%), identical results were obtained using haematoxylin-eosin staining, immunohistochemistry with Anti-Cytokeratin 19 and One-Step Nucleic Acid Amplification. Micrometastases in the lymph nodes using the One-Step Nucleic Acid Amplification method in the absence of the other methods were proven in 16 patients (16%). Only in 3 cases (3%), the examination by haematoxylin-eosin staining, or immunohistochemistry with Anti-Cytokeratin 19, was positive while One-Step Nucleic Acid Amplification was negative. The results obtained by immunohistochemistry with Anti-Cytokeratin 19 antibody were practically the same as those obtained by haematoxylin-eosin staining (97%). CONCLUSION: The results of the study have demonstrated a higher percentage of metastases detected in hilar and mediastinal lymph nodes if the One-Step Nucleic Acid Amplification method of examination was used compared to haematoxylin-eosin staining and immunohistochemistry with Anti-Cytokeratin 19 antibody (upstaging in 16%). This shows that the examination of lymph nodes using the One-Step Nucleic Acid Amplification method can have a certain potential to make the pulmonary tumours staging more accurate. On the other hand, immunohistochemistry with Anti-Cytokeratin 19 antibody seems to be not so useful. However, it is necessary to prove this hypothesis in follow-up studies, or where applicable, in a larger cohort of patients. Another task is to ascertain, by careful patient monitoring, the influence of the micrometastases detected in their lymph nodes using the One-Step Nucleic Acid Amplification method on these patients' follow-up. Key words: lung cancer - lymph nodes - H&E - IHC CK19 - OSNA assay.
- MeSH
- keratin-19 analýza MeSH
- lidé MeSH
- lymfatické metastázy diagnóza MeSH
- lymfatické uzliny MeSH
- nádory plic * diagnóza genetika MeSH
- staging nádorů * metody MeSH
- techniky amplifikace nukleových kyselin * MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- keratin-19 MeSH
BACKGROUND: Axillary dissection (AD) is an integral part of the surgical staging of breast cancer. This operation can be source of major long term complications, e. g., lymphedema. Reducing the radicality of these operations has been the subject of many clinical trials, especially those addressing the metastatic infiltration of axillary lymph nodes uncovered either by clinical staging or by sentinel lymph node (SLN) biopsy (when the clinical staging was negative). Exact clinical (mainly ultrasonographic) staging and marking of the lymph nodes detected by staging plays a key role in deciding the optimum clinical regimen. PURPOSE: Three possibilities were tested in clinical trials: The possibility of replacing the AD by radiotherapy in the case of tumorous infiltration of SLN, when clinical staging was negative; the possibility of omitting AD (in patients with positive clinical axillary staging) and replacing it with SLN biopsy after neoadjuvant chemotherapy; and the possibility of marking lymph nodes in axilla that were suspected of infiltration at the time of clinical staging. RESULTS: The studies showed clear evidence that avoiding AD was safe in oncology patients who showed infiltration of axillary SLN and negative clinical staging. Despite the high false negativity of using SLN biopsies in patients with a positive clinical staging after neoadjuvant chemotherapy, this false negativity could be reduced by using lymph node marking. By implementing these methods, it should be possible to define exactly the group of patients in whom complete pathological remission occurs after neoadjuvant chemotherapy.Key words: breast neoplasms - axilla - lymph nodes The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manuscript met the ICMJE recommendation for biomedical papers.Submitted: 17. 4. 2017Accepted: 2. 7. 2017.
- MeSH
- axila MeSH
- biopsie sentinelové lymfatické uzliny MeSH
- klinické zkoušky jako téma MeSH
- lidé MeSH
- lymfadenektomie metody MeSH
- lymfatické metastázy diagnóza MeSH
- nádory prsu patologie chirurgie MeSH
- staging nádorů metody MeSH
- Check Tag
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
BACKGROUND: Papillary thyroid carcinoma is typical by regional lymph nodes metastases. Therefore we decided to analyse associated risk factors. OBJECTIVE: In this retrospective study we focused on the incidence of metastatic involvement of the central compartment's lymph nodes correlated with age, size of the primary tumour, infiltration of thyroid gland capsule, positive lymphangioinvasion in order to assess risk factors. METHOD: We analysed group of 156 patients with papillary carcinoma, who have undergone total thyroidectomy and bilateral elective central compartment neck dissection. We evaluated the occurrence of metastases, size, infiltration and lymphangioinvasion based on definitive histology of the whole group and separately for subgroups of patients under and over 45 years. RESULT: We found metastatic involvement in 88 (56.4%) patients. When comparing the subgroups of patients under (73 patients) and over 45 years (83 patients), we found metastases in 56 vs. 32 (76.7% vs. 38.6%) patients. In the subgroup of younger patients we found significant higher incidence of metastases compared with the group of over 45 years, P < 0.001 (P = 0.000027). We found significant higher incidence of metastases in patients with positive capsule infiltration in the whole group, P < 0.001 (P = 0.00049); in the subgroup of under 45 years, P < 0.001 (P = 0.00091) and in patients with positive lymphangioinvasion in the whole group, P < 0.01 (P = 0.00177); in the subgroup of over 45 years, P < 0.001 (P = 0.0002). In patients with metastases we found tumour size ≥1cm more frequently in all groups. CONCLUSION: We recorded higher incidence of regional metastases in patients under 45 years, positive capsule infiltration, lymphangioinvasion. Age under 45 years itself does not correlate with less aggressive disease, to the contrary some of other analysed risk factors correlate with more aggressive disease.
- Klíčová slova
- age, metastases, papillary carcinoma, regional lymph nodes, thyroid gland,
- MeSH
- adenokarcinom patologie chirurgie MeSH
- dospělí MeSH
- krční disekce MeSH
- lidé středního věku MeSH
- lidé MeSH
- lymfatické metastázy diagnóza MeSH
- nádory hlavy a krku patologie chirurgie MeSH
- papilární karcinom patologie chirurgie MeSH
- staging nádorů MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Internal mammary nodes (IMN) in early stage breast cancer are a still unresolved issue. Their involvement has a crucial impact on the staging as well as prognosis of the breast cancer patients. The reported incidence of IMN drainage in the process of detecting the axillary sentinel node is about 20% depending on the tracer application technique. However, the IMN drainage itself apparently has no effect on the prognosis even when the nodes are left without biopsy or radiotherapy. The major predictive factor for the presence of metastases in IMN is the presence of metastases in axillary lymph nodes. Studies evaluating adjuvant IMN radiotherapy have shown inconsistent outcomes. The generally accepted trend towards less extensive locoregional procedures in breast cancer treatment will apparently affect the IMN, as well, given that new systemic treatment will probably compensate for uncertainties in IMN management.Key words: breast cancer internal mammary nodes radiotherapy.
Surgical resection is the treatment of choice for patients with locally confined disease, but early cancers may be adequately treated by endoscopic resection alone. In advanced colorectal cancers, accurate staging including pathological lymph node assessment is crucial for patient counselling and decision making. In addition to the extent of surgical lymph node removal and the thoroughness of the pathologist in dissecting the cancer specimen lymph node recovery is related to the actual number of regional lymph nodes that is related to patient demographics, tumor location and biology. Current guidelines recommend a minimum of twelve nodes harvested as the standard of care. In patients with node-negative tumors a variety of histological features may be used for adjusted risk assessment, including histological subtyping, lymphatic and venous invasion, tumor budding and tumor necrosis as well as the anti-tumor host inflammatory response which has been identified as favorable feature in several studies. In rectal cancer, involvement of the circumferential resection margin and the plane of surgery are important prognostic factors. Early or superficial colorectal cancer is defined as invasive adenocarcinoma invading into, but not beyond the submucosa. A number of features require special attention because they are used to determine the necessity for radical surgery. In addition to the assessment of completeness of excision, these include the recording of parameters that predict the presence of lymph node metastasis, namely the depth of invasion into the submucosa, tumor grade, and the presence of additional risk factors, such as angioinvasion and tumor budding. The combination of these parameters allows the stratification of affected individuals into low-risk and high-risk categories.
Metastasis of malignant tumors into the lymph nodes is one of the basic types of tumor spread occurring particularly in carcinomas, but also in some sarcomas. Examination of lymph nodes is a crucial part of surgical staging and influences the prognosis and treatment of the patient. The following text discusses the general mechanisms of metastasis and methods of processing and the examination of lymph nodes, including the sentinel lymph node concept.
- MeSH
- biopsie sentinelové lymfatické uzliny metody MeSH
- lidé MeSH
- lymfatické metastázy diagnóza MeSH
- lymfatické uzliny patologie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
