點擊關閉閱讀界面參考WCLC 2020和后續(xù)報道資料整理,。歡迎學習和分享,,存在缺陷和可能的謬誤,,請各位網(wǎng)友大咖明鑒并指正! 一,、上皮性腫瘤(Epithelial Tumours) 1. 良性腫瘤
2. 前驅(qū)病變(Precursor Lesions) 2.1 腺體前驅(qū)病變(Precursor Glandular Lesions)
2.2 鱗狀細胞前驅(qū)病變(Squamous precursor lesions)
2.3 肺神經(jīng)內(nèi)分泌腫瘤前驅(qū)病變(Precursor Lesions)
3. 惡性上皮性腫瘤(Malignant epithelial tumours) 3.1 腺癌(Adenocarcinoma)
· 透明細胞癌(Clear cells )和印戒細胞癌(signet ring cells)是描述性的,,不定義為亞型) · 浸潤(Invasion)的定義:
3.2 肺神經(jīng)內(nèi)分泌腫瘤(LUNG NEUROENDOCRINE NEOPLASMS)
3.3 鱗狀細胞癌(Squamous cell carcinoma)
3.4 大細胞癌(Large cell carcinoma) (注:無亞型) 3.5 腺鱗癌(Adenosquamous carcinoma) (注:無亞型) 3.6 肉瘤樣癌(Sarcomatoid carcinoma)
3.7 癌肉瘤(Carcinosarcoma)
3.8 其他上皮性惡性腫瘤(Other and unclassified carcinomas)
3.9 異位起源惡性腫瘤
二、肺間葉性腫瘤(Mesenchymal tumours)
三,、淋巴造血系統(tǒng)腫瘤
附件1、IASLC肺腺癌分級系統(tǒng) IASLC肺腺癌分級系統(tǒng) 用于浸潤性非黏液性肺腺癌(Invasive non-mucinous adenocarcinoma)的分級,。 根據(jù)存在的主要模式(貼壁樣,,腺泡狀,乳頭狀)加上高級別模式(實性,,微乳頭狀等)的比例(以20%為界)
肺腺癌的分型和診斷標準是根據(jù)主要的組織學類型進行浸潤性非粘液性腺癌的亞型分型,。這些亞型具有預后意義。貼壁樣為主型占優(yōu)勢腫瘤預后較好,;乳頭狀或腺泡狀為主型預后中等,;微乳頭狀/實體腫瘤預后較差,輔助化療可改善預后,。其他與預后相關的腫瘤特征包括核/細胞學分級,,有絲分裂,壞死,,通過肺泡氣腔播散(STAS),。 基于浸潤性肺腺癌分級系統(tǒng)(基于病理亞型):IASLC病理委員會提議,提出了浸潤性非粘液性肺腺癌的IASLC肺腺癌分級系統(tǒng),,該分級系統(tǒng)似乎改善了早期非粘液腺癌患者的預后分層,,而不是單純的以模式為基礎的預后。此外,,IASLC肺腺癌分級系統(tǒng)可能會提高患者(3級)從輔助化療中獲益,,但尚需更多臨床證據(jù)。 病理報告模板參考: 新版不要求報告腺癌具體比例,。 基于“優(yōu)勢亞型+高級別亞型”的浸潤性腺癌的分級系具有實用性和預后價值 更新: 2021-05-10 參考資料后修改,。 2021-04-25 修改 微信掃碼 → 手機閱讀 分享到 好友
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陽光 樓主 置頂 來自 2# 2021-5-10 01:00胸有朝陽 Lv.7 板凳 2021-5-10 00:00能否整理分子病理診斷的資料,。 請分析新分類對臨床的意義,? ---------------------------------------- 該書未出版。 主編Ian A. Cree醫(yī)師,。 WHO CLASSIFICATION OF TUMOURS: THORACIC TUMOURS 5 ED Edition: 5th Ed. Publication date: 2021(未出版) Publisher: World Health Organization 價格:€150.00 青春 Lv.2 地板 2021-5-10 00:00第五版有特點: 1. 書籍在線網(wǎng)站,,同時也有實體書 2. 升級加速!多快呢,? 3. 分類術語(Classification terms) · Site , 部位, e.g. Stomach · Category,,類別, e.g. Epithelial neoplasms · Family,,家族, e.g. Adenomas and other premalignant neoplastic lesions · Class,類 · Type,,型, e.g. Adenoma · Sub Type,亞型, e.g. Pyloric gland type · Variant,,變種 4. Diagnostic criteriaessential and desirable 呼吸 Lv.4 5# 2021-5-10 00:00· 細支氣管腺瘤(纖毛黏液結(jié)節(jié)性乳頭狀腫瘤)是一種良性腫瘤,,典型的表現(xiàn)在細支氣管上皮,兩個上皮層存在細胞穿孔,。有趣的是,,這些腫瘤可能含有肺癌中發(fā)現(xiàn)的驅(qū)動基因突變。Ming S. Tsao:“根據(jù)兩層上皮細胞穿孔的形態(tài),,區(qū)分細支氣管腺瘤與貼壁樣腺癌或原位腺癌是很重要的,。” · 胸部SMARCA-4-缺陷未分化腫瘤是一種高度惡性,、未分化的肺腫瘤,,有或沒有胸壁侵犯。這種類型的肺癌的特點是SMARCA-4表達缺失,,可以通過免疫組化(IHC)檢測到,。SMARCA-4基因參與染色質(zhì)重塑,其表達缺失主要是突變所致,。 · 基于主要組織學分型模型對浸潤性非黏液性腺癌的亞型分型,,這是目前肺腺癌分類和診斷的標準。這些亞型分類具有預測預后的意義:附壁生長為主型肺腺癌的腫瘤預后較好,,乳頭狀或腺泡為主的腫瘤預后中等,,微乳頭狀/實性腫瘤預后較差;后者可以預測輔助化療的生存率,。然而,,還有一些其他腫瘤特征傳統(tǒng)上與肺腺癌患者的預后相關,包括核分級和細胞學分級 ,、有絲分裂,、壞死,以及最近發(fā)現(xiàn)的特征“氣腔播散(STAS)”,。 IASLC病理學委員會開展了一項研究,,旨在建立侵襲性肺腺癌的分級系統(tǒng)。[1]該研究基于主要類型和高級別肺腺癌(based on predominant & high-grade patterns)設定肺腺癌分級系統(tǒng),,1級,,附壁生長為主型肺腺癌;2級,,腺泡或乳頭狀為主腫瘤,,高級別模式低于20%,;3級,具有≥20%任何高級別病變的腫瘤,。訓練隊列中發(fā)現(xiàn):主要模式上存在20%或更多的次高級模式(微乳頭狀,、實性和復雜腺體),可以增加患者復發(fā)或死亡的風險,,這一發(fā)現(xiàn)在2個額外的患者隊列中被獨立驗證,。 基于這些發(fā)現(xiàn),侵襲性非黏液性肺腺癌的IASLC分級體系被提出,,并將其納入第5版的WHO胸部腫瘤分類書,。與單純基于組織學模式的患者預后預測相比,這種新的IASLC分級系統(tǒng)似乎改善了非粘液腺癌早期患者的預后分層,。此外,,IASLC分級系統(tǒng)可能有助于增加可能從輔助化療中獲益的患者(G3腫瘤)的百分比,盡管這還需要額外的支持數(shù)據(jù),。 參考文獻 1.Moreira AL. Ocampo PSS, Xia Y, et al. A Grading System for Invasive Pulmonary Adenocarcinoma: A Proposal From the International Association for the Study of Lung Cancer Pathology Committee. J Thorac Oncol. 2020;15(10):1599-1610. 小刀 Lv.4 6# 2021-5-10 01:00Bronchiolar Adenoma (ciliated muconodular papillary tumor) is a benign tumor which typically shows the perforations of two layers of bland appearing cells along the bronchiolar epithelium. Interestingly, these tumors may harbor driver mutations found in lung cancer.It is important to distinguish bronchiolar adenoma from lepidic adenocarcinoma or adenocarcinoma in situ based on the morphology of the two-layer epithelial cell perforation. 小刀 Lv.4 7# 2021-5-10 01:00Thoracic SMARCA4-Deficient Undifferentiated Tumor is a highly malignant, undifferentiated lung tumor with or without pleural chest wall invasions. This type of lung cancer is characterized by the loss of expression of SMARCA-4, which can be detected by immunohistochemistry (IHC). SMARCA-4 gene is involved in chromatin remodeling, and the loss of expression is mostly due to mutation. 小刀 Lv.4 8# 2021-5-10 01:00非黏液性肺腺癌(Invasive non-mucinous adenocarcinoma)應該修改為“浸潤性非黏液性肺腺癌”,。 網(wǎng)友銳評
小刀 Lv.4 9# 2021-5-10 01:00浸潤性非黏液性肺腺癌的分級系統(tǒng)的目標是為了篩選適合接受輔助治療的病人,。 Subtyping invasive non-mucinous adenocarcinoma based on the predominant histological pattern is now standard in lung adenocarcinoma classification and diagnosis. These subtypes have prognostic significance. Lepidic-predominant tumors have a better prognosis, papillary or acinar predominant tumors have an intermediate prognosis, and micropapillary/solid tumors have poor prognosis; the latter may predict survival benefit from adjuvant chemotherapy. However, there are additional tumor features that have traditionally been associated with prognosis including nuclear and cytology grade, mitosis, necrosis, and most recently, the spread through air spaces (STAS). In a study by the IASLC Pathology Committee, it was found that the presence of 20% or more of secondary high-grade patterns (micropapillary, solid and complex gland) on top of the primary pattern, can increase the risk of recurrence or death in a training cohort and independently validated in 2 additional patient cohorts. Based on these findings, the IASLC Differentiation Grading System for invasive non-mucinous pulmonary adenocarcinoma was proposed and included in the new WHO Classification book. This grading system appears to improve the stratification of the prognosis of early-stage non-mucinous adenocarcinoma patients compared to predominant pattern-based prognostication alone. Furthermore, the IASLC Grading System may possibly increase the percentage of patients (with grade 3 tumors) who might potentially benefit from adjuvant chemotherapy, although this requires additional supporting data. 參考文獻: Moreira AL. Ocampo PSS, Xia Y, et al. A Grading System for Invasive Pulmonary Adenocarcinoma: A Proposal From the International Association for the Study of Lung Cancer Pathology Committee. J Thorac Oncol. 2020;15(10):1599-1610. |
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