scholarly journals Abscopal effect in pulmonary carcinoid tumor following ablative stereotactic body radiation therapy: a case report

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Samuel A. Kareff ◽  
Jonathan W. Lischalk ◽  
Rebecca Krochmal ◽  
Chul Kim
Keyword(s):  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
African American Woman ◽  
American Woman ◽  
Lower Lobe ◽  
Antigen Expression ◽  
Abscopal Effect ◽  
Pulmonary Carcinoid ◽  
Stereotactic Body Radiation ◽  
First Case

Abstract Background The abscopal effect was described as early as the 1950s, when untreated tumors demonstrated a response after radiation therapy was delivered to an untreated, distant site. The mechanisms underlying this global response to otherwise localized therapy remain unknown, though there is increasing evidence that increased antigen expression following ablative radiotherapy may play a role. Case presentation We report a case of a 69-year-old African American woman with a history of metastatic typical pulmonary carcinoid with multiple lung nodules who had a significant decrease in size of an untreated left upper lobe nodule after stereotactic body radiation therapy to an oligoprogressive left lower lobe lesion. Conclusions To our knowledge, this report describes the first case of an abscopal effect in a typical pulmonary carcinoid. Further research is needed regarding the mechanisms responsible for this finding and the role of combining radiation therapy and cancer immunotherapy in patients with pulmonary carcinoid tumors.

Abscopal Effect Following Immunotherapy and Combined Stereotactic Body Radiation Therapy in Recurrent Metastatic Head and Neck Squamous Cell Carcinoma: A Report of Two Cases and Literature Review

2019 ◽  
Vol 129 (5) ◽  
pp. 517-522 ◽  
Author(s):  
Jonathan S. Choi ◽  
Eugene R. Sansoni ◽  
Benjamin D. Lovin ◽  
Nathan R. Lindquist ◽  
Jack Phan ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Radiation Therapy ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Stereotactic Body Radiation Therapy ◽  
Complete Response ◽  
Neck Squamous Cell Carcinoma ◽  
Abscopal Effect ◽  
Stereotactic Body Radiation

Objective: We present two patients with recurrent, metastatic head and neck squamous cell carcinoma (R/M HNSCC) after platinum-based chemotherapy and radiotherapy (RT) with complete response via abscopal effect following combined immunotherapy (IT) and stereotactic body radiation therapy (SBRT). We review the literature for patients undergoing combined treatment with IT and RT to identify potential cases of abscopal response. Study Design: This is a case series with a contemporary review of the literature. Methods: Retrospective chart review identified two patients with potential abscopal responses after IT and RT for R/M HNSCC. The MEDLINE database was queried using the search terms “abscopal AND head and neck squamous cell carcinoma” and “immunotherapy AND stereotactic body radiation therapy.” Results: Two patients with metastatic HNSCC developed complete responses via a possible abscopal effect following combined SBRT and IT. Interim follow-up of both patients revealed a sustained, complete response. We examine the immunogenic effects of RT and report the first cases of potential abscopal effect for R/M HNSCC. We also review several preclinical studies demonstrating the synergistic efficacy of combined RT and IT with a discussion of possible mechanism. Conclusion: Observation of abscopal effect with combined IT and RT is currently under investigation through several preclinical studies and trials. To the best of our knowledge, these are the first two reported cases of abscopal effect for patients with HNSCC. We report two patients with R/M HNSCC with sustained, complete response after systemic IT and local RT.

Non-surgical Treatments for Lung Metastases in Patients with soft Tissue Sarcoma: Stereotactic Body Radiation Therapy (SBRT) and Radiofrequency Ablation (RFA)

2020 ◽  
Vol 16 ◽  
Author(s):  
Cecilia Tetta ◽  
Maria Carpenzano ◽  
Areej Tawfiq J Algargoush ◽  
Marwah Algargoosh ◽  
Francesco Londero ◽  
...  
Keyword(s):  
Overall Survival ◽  
Radiation Therapy ◽  
Soft Tissue ◽  
Soft Tissue Sarcoma ◽  
Stereotactic Body Radiation Therapy ◽  
Lung Metastases ◽  
Disease Free Interval ◽  
Stereotactic Body Radiation ◽  
Free Interval ◽  
Disease Free

Background: Radio-frequency ablation (RFA) and Stereotactic Body Radiation Therapy (SBRT) are two emerging therapies for lung metastases. Introduction: We performed a literature review to evaluate outcomes and complications of these procedures in patients with lung metastases from soft tissue sarcoma (STS). Method: After selection, seven studies were included for each treatment encompassing a total of 424 patients: 218 in the SBRT group and 206 in the RFA group. Results: The mean age ranged from 47.9 to 64 years in the SBRT group and from 48 to 62.7 years in the RFA group. The most common histologic subtype was, in both groups, leiomyosarcoma. : In the SBRT group, median overall survival ranged from 25.2 to 69 months and median disease-free interval from 8.4 to 45 months. Two out of seven studies reported G3 and one G3 toxicity, respectively. In RFA patients, overall survival ranged from 15 to 50 months. The most frequent complication was pneumothorax. : Local control showed high percentage for both procedures. Conclusion: SBRT is recommended in patients unsuitable to surgery, in synchronous bilateral pulmonary metastases, in case of deep lesions and in patients receiving high-risk systemic therapies. RFA is indicated in case of a long disease-free interval, in oligometastatic disease, when only the lung is involved, in small size lesions far from large vessels. : Further large randomized studies are necessary to establish whether these treatments may also represent a reliable alternative to surgery.

Stereotactic Body Radiation Therapy: Lung Cancer

2013 ◽  
Author(s):  
Simon Lo ◽  
Bin S Teh ◽  
Nina A Mayr ◽  
Mitchell Machtay
Keyword(s):  
Lung Cancer ◽  
Radiation Therapy ◽  
Stereotactic Body Radiation Therapy ◽  
Stereotactic Body Radiation
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