Resection of a large gastrointestinal stromal tumor in the stomach after imatinib treatment in a 90-year-old patient
- 24 February 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Clinical Journal of Gastroenterology
- Vol. 14 (3), 745-753
- https://doi.org/10.1007/s12328-021-01365-y
Abstract
A 90-year-old woman presented with a 1-month history of progressive abdominal fullness. Contrast computed tomography (CT) showed a large 17-cm mass located adjacent to the antrum of the stomach without metastatic lesions. She underwent endoscopic ultrasound-guided fine-needle aspiration for diagnosis. Aspiration specimens revealed spindle-shaped cells positive for KIT by immunohistochemistry, with exon 11 mutations of the c-kit gene according to a genetic test. We ultimately diagnosed her with gastrointestinal stromal tumor (GIST). We judged the feasibility of imatinib treatment based on physiological and comprehensive geriatric assessments. We administered imatinib to reduce the tumor size and expected an excellent response based on genetic testing. After 5 months of imatinib administration with therapeutic drug monitoring (TDM), the tumor shrank by 42%. Six months later, there was no significant uptake of 18F-fluorodeoxyglucose on positron emission tomography. We successfully performed partial gastrectomy as conversion surgery, and she was carefully observed without any medication for 10 months after surgery. Here, we report a super elderly patient aged 90 years with a large GIST harboring an exon 11 mutation who underwent surgery after imatinib treatment with appropriate dose reduction during TDM after comprehensive geriatric assessment.Keywords
This publication has 14 references indexed in Scilit:
- Epidemiology of Gastrointestinal Stromal Tumors in the Era of Histology Codes: Results of a Population-Based StudyCancer Epidemiology, Biomarkers & Prevention, 2015
- Estimated life expectancy and risk of death from cancer by quartiles in the older Japanese population: 2010 vital statisticsCancer Epidemiology, 2014
- Neoadjuvant Imatinib in Locally Advanced Gastrointestinal Stromal Tumors (GIST): The EORTC STBSG ExperienceAnnals of Surgical Oncology, 2013
- Treatment of advanced gastrointestinal stromal tumors in patients over 75 years old: clinical and pharmacological implicationsTargeted Oncology, 2012
- Imatinib Plasma Levels Are Correlated With Clinical Benefit in Patients With Unresectable/Metastatic Gastrointestinal Stromal TumorsJournal of Clinical Oncology, 2009
- Imatinib for the treatment of patients with unresectable and/or metastatic gastrointestinal stromal tumours: systematic review and economic evaluationHealth Technology Assessment, 2005
- The Mini‐Cog as a Screen for Dementia: Validation in a Population‐Based SampleJournal of the American Geriatrics Society, 2003
- Response markers and the molecular mechanisms of action of Gleevec in gastrointestinal stromal tumors.2003
- The Vulnerable Elders Survey: A Tool for Identifying Vulnerable Older People in the CommunityJournal of the American Geriatrics Society, 2001
- Gastrointestinal stromal tumors - definition, clinical, histological, immunohistochemical, and molecular genetic features and differential diagnosisVirchows Archiv, 2001