Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery

Abstract Background Some oligometastatic lung cancer patients, after induction systemic chemotherapy or tyrosine kinases inhibitor treatment, followed by aggressive radical consolidative treatment, have improved overall survival. Unfortunately, clinical criteria cannot assess such patients. Case pre...

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Main Authors: Ping-Chung Tsai, Yi-Chen Yeh, Chien-Sheng Huang, Chao-Hua Chiu
Format: Article
Language:English
Published: Japan Surgical Society 2019-11-01
Series:Surgical Case Reports
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Online Access:http://link.springer.com/article/10.1186/s40792-019-0741-3
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author Ping-Chung Tsai
Yi-Chen Yeh
Chien-Sheng Huang
Chao-Hua Chiu
author_facet Ping-Chung Tsai
Yi-Chen Yeh
Chien-Sheng Huang
Chao-Hua Chiu
author_sort Ping-Chung Tsai
collection DOAJ
description Abstract Background Some oligometastatic lung cancer patients, after induction systemic chemotherapy or tyrosine kinases inhibitor treatment, followed by aggressive radical consolidative treatment, have improved overall survival. Unfortunately, clinical criteria cannot assess such patients. Case presentation We hereby reported the case of a 55-year-old female with lower back pain and bilateral lower leg numbness for months and who had an osteolytic bone lesion over the third lumbar vertebra. In February 2017, a third lumbar vertebra biopsy showed metastatic adenocarcinoma, compatible with lung origin (thyroid transcription factor-1 positive [TTF-1], L858R mutation positive). Complete imaging of the right lower lobe (RLL) showed a spiculated mass of about 3.4 × 2.2 cm, and a trans-bronchoscopic lung biopsy revealed non-small cell carcinoma of lung origin (positive for TTF-1 and negative for p40). Tentative diagnosis was RLL adenocarcinoma, cT2aN0M1b, with bone metastasis at L3. The epidermal growth factor receptor-tyrosine kinase inhibitor afatinib was prescribed beginning April 2017. A November 2018 follow-up CT scan showed regression in the RLL lung mass. A whole-body positron emission tomography-computed tomography showed RLL lung nodule with faint uptake and mildly increased uptake in the L3 vertebra. After providing informed consent, the patient received uniportal video-assisted thoracoscopic RLL lobectomy and radical mediastinal lymph node dissection on December 25, 2018. The final pathology report was fibrotic scar with no residual tumor cells, compatible with post-treatment status, ypT0N0. Curative intent radiotherapy was also applied to the L3 vertebra after the operation. The patient is still alive for more than 32 months after initially diagnosed with metastatic lung adenocarcinoma. Conclusions Our case provides additional data to support that tissue assessment through primary lung tumor resection after systemic treatment of oligometastic lung cancer by minimally invasive surgery can reveal the treatment effect and potentially provide a surrogate endpoint in further clinical trials.
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spelling doaj-art-a445680279f94ea2b22ec389dc91e0962025-08-20T02:51:49ZengJapan Surgical SocietySurgical Case Reports2198-77932019-11-01511510.1186/s40792-019-0741-3Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgeryPing-Chung Tsai0Yi-Chen Yeh1Chien-Sheng Huang2Chao-Hua Chiu3Division of Thoracic Surgery, Department of Surgery, Taipei Veterans General HospitalDepartment of Pathology, Taipei Veterans General HospitalDivision of Thoracic Surgery, Department of Surgery, Taipei Veterans General HospitalDivision of Thoracic Oncology, Department of Chest Medicine, Taipei Veterans General HospitalAbstract Background Some oligometastatic lung cancer patients, after induction systemic chemotherapy or tyrosine kinases inhibitor treatment, followed by aggressive radical consolidative treatment, have improved overall survival. Unfortunately, clinical criteria cannot assess such patients. Case presentation We hereby reported the case of a 55-year-old female with lower back pain and bilateral lower leg numbness for months and who had an osteolytic bone lesion over the third lumbar vertebra. In February 2017, a third lumbar vertebra biopsy showed metastatic adenocarcinoma, compatible with lung origin (thyroid transcription factor-1 positive [TTF-1], L858R mutation positive). Complete imaging of the right lower lobe (RLL) showed a spiculated mass of about 3.4 × 2.2 cm, and a trans-bronchoscopic lung biopsy revealed non-small cell carcinoma of lung origin (positive for TTF-1 and negative for p40). Tentative diagnosis was RLL adenocarcinoma, cT2aN0M1b, with bone metastasis at L3. The epidermal growth factor receptor-tyrosine kinase inhibitor afatinib was prescribed beginning April 2017. A November 2018 follow-up CT scan showed regression in the RLL lung mass. A whole-body positron emission tomography-computed tomography showed RLL lung nodule with faint uptake and mildly increased uptake in the L3 vertebra. After providing informed consent, the patient received uniportal video-assisted thoracoscopic RLL lobectomy and radical mediastinal lymph node dissection on December 25, 2018. The final pathology report was fibrotic scar with no residual tumor cells, compatible with post-treatment status, ypT0N0. Curative intent radiotherapy was also applied to the L3 vertebra after the operation. The patient is still alive for more than 32 months after initially diagnosed with metastatic lung adenocarcinoma. Conclusions Our case provides additional data to support that tissue assessment through primary lung tumor resection after systemic treatment of oligometastic lung cancer by minimally invasive surgery can reveal the treatment effect and potentially provide a surrogate endpoint in further clinical trials.http://link.springer.com/article/10.1186/s40792-019-0741-3OligometastasesPathologic complete responseStereotactic radiotherapyImmune checkpoint inhibitorsTyrosine kinase inhibitors
spellingShingle Ping-Chung Tsai
Yi-Chen Yeh
Chien-Sheng Huang
Chao-Hua Chiu
Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
Surgical Case Reports
Oligometastases
Pathologic complete response
Stereotactic radiotherapy
Immune checkpoint inhibitors
Tyrosine kinase inhibitors
title Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
title_full Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
title_fullStr Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
title_full_unstemmed Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
title_short Pathological complete response after afatinib treatment of stage IV oligometastatic adenocarcinoma of the lung: the role of pulmonary surgery
title_sort pathological complete response after afatinib treatment of stage iv oligometastatic adenocarcinoma of the lung the role of pulmonary surgery
topic Oligometastases
Pathologic complete response
Stereotactic radiotherapy
Immune checkpoint inhibitors
Tyrosine kinase inhibitors
url http://link.springer.com/article/10.1186/s40792-019-0741-3
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AT chienshenghuang pathologicalcompleteresponseafterafatinibtreatmentofstageivoligometastaticadenocarcinomaofthelungtheroleofpulmonarysurgery
AT chaohuachiu pathologicalcompleteresponseafterafatinibtreatmentofstageivoligometastaticadenocarcinomaofthelungtheroleofpulmonarysurgery