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Rao A, Rao R, Taylor MK, Khreiss M, Arshad J. Concurrent Stage III Unresectable Duodenal Adenocarcinoma and Metastatic Gastrointestinal Stromal Tumor Treated With Combination of Imatinib and mFOLFIRI. Cureus 2024; 16:e58248. [PMID: 38745800 PMCID: PMC11093406 DOI: 10.7759/cureus.58248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2024] [Indexed: 05/16/2024] Open
Abstract
Cases of concurrent duodenal adenocarcinoma and gastrointestinal stromal tumors (GISTs) are rare, and only a few have been reported. While some cases of other synchronous primary tumors with GIST have been reported, no shared mutations have been consistently found, creating challenges in selecting chemotherapy in cases of inoperable tumors. Here, we presented a case of a stage IIIA locally advanced/unresectable duodenal adenocarcinoma with concurrent metastatic small bowel GIST successfully being treated with combined imatinib and modified folinic acid, 5-fluorouracil, and irinotecan (mFOLFIRI) regimen.
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Affiliation(s)
- Amith Rao
- Department of Internal Medicine, Banner Health, Tucson, USA
| | - Rohit Rao
- Department of Internal Medicine, University Hospitals Cleveland Medical Center, Cleveland, USA
| | - Megan K Taylor
- Department of Internal Medicine, University of Arizona College of Medicine, Tucson, USA
| | - Mohammad Khreiss
- Department of Surgical Oncology, University of Arizona College of Medicine, Tucson, USA
| | - Junaid Arshad
- Department of Medical Oncology, University of Arizona Cancer Center, Tucson, USA
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Khan TM, Verbus EA, Rossi AJ, Hernandez JM, Davis JL, Coakley BA, Blakely AM. Patient demographics, clinicopathologic features, and outcomes in wild-type gastrointestinal stromal tumor: a national cohort analysis. Sci Rep 2022; 12:5774. [PMID: 35388076 PMCID: PMC8987058 DOI: 10.1038/s41598-022-09745-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/08/2022] [Indexed: 11/09/2022] Open
Abstract
Wild-type KIT and PDGFRA gastrointestinal stromal tumors (GIST) are rare tumors with limited treatment options. We sought to determine the clinicopathologic features of wild-type GIST and identify factors that influence overall survival (OS) using a large national database. Retrospective evaluation of patients with wild-type GIST in the National Cancer Database (NCDB) was performed. Demographic, clinicopathologic, and treatment data were analyzed. Features associated with OS were investigated using Kaplan-Meier analysis and Cox proportional hazards model. 244 patients with median diagnosis age of 59 years (95% CI 57-63) were identified. The stomach was the most common primary site (57%) followed by the small intestine (35%). Surgical resection was performed on 85% of patients and 53% of patients received systemic therapy. Factors associated with decreased OS on multivariable analysis included small intestine primary (HR 2.72, 95% CI 1.13-6.69, P = 0.026) and > 5 mitoses per 50 HPF (HR 4.77, 95% CI 1.86-13.2, P = 0.001). Wild-type GISTs may be identified in older patients, with most arising in the stomach and small bowel. Surgery remains the principal treatment modality. Small intestine primary site and high mitotic count were associated with abbreviated OS.
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Affiliation(s)
- Tahsin M Khan
- Surgical Oncology Program, National Cancer Institute, Bethesda, MD, USA.,Department of Surgery, The Mount Sinai Hospital, New York, NY, USA
| | - Emily A Verbus
- Surgical Oncology Program, National Cancer Institute, Bethesda, MD, USA
| | - Alexander J Rossi
- Surgical Oncology Program, National Cancer Institute, Bethesda, MD, USA
| | | | - Jeremy L Davis
- Surgical Oncology Program, National Cancer Institute, Bethesda, MD, USA
| | - Brian A Coakley
- Department of Surgery, The Mount Sinai Hospital, New York, NY, USA
| | - Andrew M Blakely
- Surgical Oncology Program, National Cancer Institute, 9000 Rockville Pike Building 10, Room 4-3760, Bethesda, MD, 20892, USA.
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