Pathology Issues in Thoracic Oncology: Histologic Characterization and Tissue/Plasma Genotyping May Resolve Diagnostic Dilemmas

Author(s):  
Ibiayi Dagogo-Jack ◽  
Andreas Saltos ◽  
Alice T. Shaw ◽  
Jhanelle E. Gray

Lung cancer is a heterogeneous diagnosis that encompasses a spectrum of histologic and molecular subgroups. A paradigm shift favoring selection of treatment based on histologic and molecular makeup has positively affected prognosis for patients with metastatic lung cancer, with select patients experiencing durable responses to treatment. However, prognosis remains poor for the majority of patients. Furthermore, oncologists are increasingly faced with challenging dilemmas related to histopathologic and molecular characterization of tumors, both at diagnosis and during treatment. In this review, we focus on three particular challenges: (1) management of mixed histology tumors, a particularly aggressive group of lung cancers, (2) distinguishing multiple primary lung tumors from intrapulmonary metastases, and (3) incorporation of liquid biopsies into the diagnostic algorithm and subsequent follow-up of patients with advanced lung cancer. This review will summarize the existing literature and highlight the potential for molecular genotyping to help refine approaches to each of these challenges.

Cancers ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 3711
Author(s):  
François Montagne ◽  
Florian Guisier ◽  
Nicolas Venissac ◽  
Jean-Marc Baste

Non-small cell lung cancers (NSCLC) are different today, due to the increased use of screening programs and of innovative systemic therapies, leading to the diagnosis of earlier and pre-invasive tumors, and of more advanced and controlled metastatic tumors. Surgery for NSCLC remains the cornerstone treatment when it can be performed. The role of surgery and surgeons has also evolved because surgeons not only perform the initial curative lung cancer resection but they also accompany and follow-up patients from pre-operative rehabilitation, to treatment for recurrences. Surgery is personalized, according to cancer characteristics, including cancer extensions, from pre-invasive and local tumors to locally advanced, metastatic disease, or residual disease after medical treatment, anticipating recurrences, and patients’ characteristics. Surgical management is constantly evolving to offer the best oncologic resection adapted to each NSCLC stage. Today, NSCLC can be considered as a chronic disease and surgery is a valuable tool for the diagnosis and treatment of recurrences, and in palliative conditions to relieve dyspnea and improve patients’ comfort.


Oncogene ◽  
2002 ◽  
Vol 21 (18) ◽  
pp. 2822-2828 ◽  
Author(s):  
Katsumi Koshikawa ◽  
Hirotaka Osada ◽  
Ken-ichi Kozaki ◽  
Hiroyuki Konishi ◽  
Akira Masuda ◽  
...  

2020 ◽  
Author(s):  
Xuyu Gu ◽  
Chanchan Gao ◽  
Longfei Wang ◽  
Shiya Zheng

Abstract BackgroundLung adenocarcinoma with breast metastasis is rare. In the present study, a case of an advanced patient with breast metastasis from lung adenocarcinoma with EGFR 21 exon p.L858R mutation who underwent TKI-inhibitors is reported.Case presentationA 62-year-old female patient diagnosed with lung adenocarcinoma who had undergone seven times disease progress and breast metastasis in sixth time disease progress.The patient underwent left breast puncture and axillary lymph node in ultrasound-guided and the postoperative pathological diagnosis of metastatic lung adenocarcinoma was confirmed. And then gene detection showed EGFR 21 exon p.L858R mutation. Breast metastasis for lung adenocarcinoma was diagnosed and the patient are being treated with Almonertinib.ConclusionBreast metastasis is rare and lung adenocarcinoma might be the primary disease. Gene indection is important. And for lung cancer patients with recurrent pleural effusion, visit of the breast should be included in the follow-up process.


2021 ◽  
Author(s):  
Luis E. Raez ◽  
Kathleen Danenberg ◽  
Daniel Sumarriva ◽  
Joshua Usher ◽  
Jacob Sands ◽  
...  

Aim: We report an exploratory analysis of cfRNA as a biomarker to monitor clinical responses in non-small cell lung cancer (NSCLC), breast cancer, and colorectal cancer (CRC). An analysis of cfRNA as a method for measuring PD-L1 expression with comparison to clinical responses was also performed in the NSCLC cohort. Methods: Blood samples were collected from 127 patients with metastatic disease that were undergoing therapy, 52 with NSCLC, 50 with breast cancer, and 25 with CRC. cfRNA was purified from fractionated plasma, and following reverse transcription (RT), total cfRNA and gene expression of PD-L1were analyzed by real-time polymerase chain reaction (qPCR) using beta-actin expression as a surrogate for relative amounts of cfDNA and cfRNA. For the concordance study of liquid biopsies and tissue biopsies, the isolated RNA was analyzed by RNAseq for the expressions of 13 genes. We had to close the study early due to a lack of follow-up during the Covid-19 pandemic. Results: We collected a total of 373 blood samples. Mean cfRNA PCR signals after RT were about 50-fold higher than those of cfDNA. cfRNA was detected in all patients, while cfDNA was detected in 88% of them. A high concordance was found for the expression levels of 13 genes between blood and solid tumor tissue. Changes in cfRNA levels followed over the course of treatments were associated with response to therapy, increasing in progressive disease (PD) and falling when a partial response (PR) occurred. The expression of PD-L1 over time in patients treated with immunotherapy decreased with PR but increased with PD. Pre-treatment levels of PD-L1 were predictive of response in patients treated with immunotherapy. Conclusion: Changes in cfRNA correlate with clinical response to the therapy. Total cfRNA may be useful in predicting clinical outcomes. PD-L1 gene expression may provide a biomarker to predict response to PD-L1 inhibition.


2006 ◽  
Vol 24 (18_suppl) ◽  
pp. 17148-17148
Author(s):  
S. Agarwal ◽  
P. Agarwal

17148 Background: Gemcitabine is established treatment modality for NSCLC. However it’s introduction on day 8 is sometimes delayed because of low counts or poor patient acceptance because of effects of d1 dose. Methods: We have used gemcitabine 10000 mg/m2 as d1,d10 regimen in 32 patients of advanced lung cancer incombination with either cisplatin or carboplatin .Colony stimulating factors were required in 2 patients. Results: The patients tolerated the chemotherapy (4 to 6 cycles) satisfactorily and none of the patient required delaying of the d10 therapy. Complete regression was seen in 2 patients,partial regression in 22 patients.the median survival was 10.2 months. Conclusions: The d1–10 schedule of gemcitabine based chemotherapry is safe,effective and better tolerated then the d1-d8 schedule. No significant financial relationships to disclose.


2013 ◽  
Vol 31 (15_suppl) ◽  
pp. e19157-e19157
Author(s):  
Anders Mellemgaard ◽  
Philomena Bredin ◽  
Maria Iachina ◽  
Anders Green ◽  
Mark Krasnik ◽  
...  

e19157 Background: Comorbidity may influence prognosis in lung cancer, affect performance status (PS) of patients as well as complicate treatment. The present study examines usage and outcome of chemotherapy (CT) for advanced-stage lung cancer, and focuses on the role of comorbidity. Methods: Patients with advanced-stage lung cancer were identified in the Danish Lung Cancer Registry. A total of 22,999 patients with non-resectable, advanced-stage lung cancer were identified. Data on stage, PS, Charlson comorbidity score (ChS), age, histology and type of first treatment (if any) were avaliable. First treatment was categorized as chemotherapy (n=7,346), chemo-radiotherapy (2,636), radiotherapy (n=4,155) or no therapy (n=8,862). Survival was examined separately for 0-1 year and 1-5 years, and further distinction was made between metastatic and non-metastatic lung cancer. Data are presented for the subgroup of patients receiving chemotherapy as first treatment only. All estimates are derived from logistic regression model adjusting for the effect of performance status, pulmonary function and histological type, except for usage where models included same variables plus stage. Results: Use of chemotherapy was less frequent for more comorbid patients (OR 0.86, 0.64, 0.56 for Charlson score 1, 2, 3+ respectively compared to no comorbidity). Older patients and men were less likely to receive CT. For patients receiving CT as first treatment for non-metastatic lung cancer, survival in the first year was slightly worse for those with co-morbidity (HR 0-1year, non metastatic =0.91, 0.92, 0.87 for ChS 1,2,3+ respectively). For 1-5years and for metastatic lung cancer no correlation between comorbidity and survival was noted. In contrast, PS and sex was strongly associated with survival. Conclusions: With increasing co morbidity, chemotherapy was used less often. Comorbidity is not an important prognostic factor in advanced lung cancer treated with chemotherapy. However, sex and especially performance status remain as strong prognostic factors in this patient group.


2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 403-403
Author(s):  
Jane Elizabeth Rogers ◽  
Van Nguyen ◽  
Graciela M. Nogueras-Gonzalez ◽  
Christopher H. Crane ◽  
Prajnan Das ◽  
...  

403 Background: Curative treatment for cholangiocarcinoma (CC) is surgical resection. Unfortunately, most CC patients (pts) present with unresectable disease in which gemcitabine plus platinum (GEM-P) chemotherapy is the mainstay of treatment (tx). Advanced CC has a dismal prognosis with 5-year survival reported at 5-10 %. Data regarding chemoradiation (CRT) in pts with unresectable CC (uCC) remains limited. Methods: We retrospectively reviewed uCC pts from 1/1/2009 to 7/31/2013. Primary objective: to evaluate the percentage of pts treated with CRT and the median number of chemotherapy cycles given prior to CRT. Secondary objectives: response to first-line tx, progression free survival (PFS) with or without CRT, overall survival (OS) with or without CRT, and duration of CRT control. Inclusion criteria: uCC diagnosis, received tx, and had follow-up at our institution. Exclusion criteria: pts who received liver-directed therapy other than CRT, mixed histology tumors, and a history of other malignancies. Results: 114 pts were included with 62% having intrahepatic CC. Disease control (DC) (response + stable disease) with first-line tx was 75% with 71% receiving GEM-P +/- erlotinib first-line. 65% of pts received CRT with a median of 6 chemotherapy cycles given prior to CRT. DC after CRT was 62% with a median duration of radiation control of 6.4 mths. Median PFS and OS for all pts were 13.4 mths and 27.8 mths, respectively. Median PFS in the CRT group was 14.5 mths versus 11.4 mths in the no CRT group (p = 0.105). Median OS in the CRT cohort was 29.4 mths, while median OS without CRT was 22.4 mths (p = 0.005). Median OS and PFS after CRT for pts with DC on first-line tx were 32.0 months (95% CI = 24-44 mths) and 15.7 mths (95% CI =13.5-18.8 mths), respectively. Pts who progressed on first-line tx and received CRT had a median OS of 23.8 mths (95% CI = 7-30 months) and median PFS of 4.2 mths (95% CI = 2.3-9 mths). Conclusions: Our retrospective review reveals a significant improvement in median OS with CRT in uCC pts. Those with DC on first-line tx showed improvement in PFS and OS with CRT. Patient selection is key with the benefit being highest in pts with DC with first-line tx. Our results warrant further investigation of the role of CRT in uCC.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e20546-e20546
Author(s):  
Sarah Anne Fraser

e20546 I hope to present the trial protocol as a poster at ASCO with co design work commencing 2017. Background: Lung cancer is the leading cause of cancer death in NZ.1 85% of registrations annually are stage four at diagnosis, presenting a significant burden on resources. Despite novel therapies, survival is poor and quality of life is a key consideration in patient management .2,3 Currently the aim of surveillance is to detect for disease progression and follows a three monthly pattern. There is little literature around benefits of surveillance on survival, and quality of life in these patients. 4-6 Alternative approaches to surveillance should be evaluated to ensure safe, convenient, economical care. Lung cancer outcomes for Maori patients sit significantly lower than those for New Zealand Europeans. Maori patients are twice as likely to present with locally advanced disease and four times less likely to receive curative treatment (multivariate analysis). There are significant barriers for Maori patients to attending health care including time off work, health literacy, costs, child care, language barriers, and transport. 19 Ministry of Health data describes poor outcomes for Maori lung cancer patients with rate of death sitting at 3.4 times that of non-Maori. Co-Primary End Points To determine if there is a reduction in health services utilisation (ED visits, hospital visits, unplanned clinic visits, GP visits, and Nurse Specialist contact) with the end point identified at progression, lost to follow up, or death. To compare the impact of a novel virtual surveillance model (VSM) versus usual follow-up care on patient anxiety measured using the HADS-A tool. Methods: LuCaS is a Randomised Controlled trial in patients with advanced lung cancer randomised to virtual model or standard care. Results: recruitment begins this year. Conclusions: Hypothesis:A virtual follow up model for advanced stage non-small cell lung cancer patients, extensive stage small cell lung cancer patients, and mesothelioma patients will reduce health care utilisation and patient experienced anxiety defined by reduction in Hospital Anxiety and Depression Scale (HADS-A) score, while maintaining effectiveness detecting recurrence and survival.


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