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Khan SI, O’Sullivan NJ, Temperley HC, Rausa E, Mehigan BJ, McCormick P, Larkin JO, Kavanagh DO, Kelly ME. Gastrointestinal Stromal Tumours (GIST) of the Rectum: A Systematic Review and Meta-Analysis. Curr Oncol 2022; 30:416-429. [PMID: 36661683 PMCID: PMC9857930 DOI: 10.3390/curroncol30010034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/11/2022] [Accepted: 12/22/2022] [Indexed: 12/30/2022] Open
Abstract
Background: Rectal gastrointestinal stromal tumours (GISTs) have many treatment options, but uncertainty remains regarding the best treatment regimen for this rare pathology. The aim of this review is to assess the optimal management approach including timing of chemotherapy. Methods: PubMed, EMBASE, and Cochrane databases were searched for relevant articles comparing the impact of radical vs. local excision, and neoadjuvant vs. adjuvant therapy had on outcomes in the management of rectal GISTs. We specifically evaluated the influence that the aforementioned factors had on margins, recurrence, overall survival, 5-year disease-free survival, and hospital length of stay. Results: Twenty-eight studies met our predefined criteria and were included in our study, twelve of which were included in the quantitative synthesis. When comparing neoadjuvant versus adjuvant chemotherapy, our meta-analysis noted no significance in terms of margin negativity (R0) (odds ratio [OR] 2.01, 95% confidence interval [CI], 0.7−5.79, p = 0.20) or recurrence rates (OR 0.22, 95% CI, 0.02−1.91, p = 0.17). However, there was a difference in overall 5-year survival in favour of neoadjuvant therapy (OR 3.19, 95% CI, 1.37−7.40, * p = 0.007). Comparing local excision versus radical excision, our meta-analysis observed no significance in terms of overall 5-year survival (OR1.31, 95% CI, 0.81−2.12, p = 0.26), recurrence (OR 0.67, 95% CI, 0.40−1.13, p = 0.12), or 5-year disease-free survival (OR 1.10, 95% CI, 0.55−2.19, p = 0.80). There was a difference in length of hospital stay with a reduced mean length of stay in local excision group (mean difference [MD] 6.74 days less in the LE group; 95% CI, −6.92−−6.56, * p =< 0.00001) as well as a difference in R0 rates in favour of radical resection (OR 0.68, 95% CI, 0.47−0.99, * p = 0.05). Conclusion: Neoadjuvant chemotherapy is associated with improved overall 5-year survival, while local excision is associated with reduced mean length of hospital stay. Further large-volume, prospective studies are required to further define the optimal treatment regimen in this complex pathology.
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Affiliation(s)
| | - Niall J. O’Sullivan
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, D08 W9RT Dublin, Ireland
- Department of Surgery, Tallaght University Hospital, D24 NR0A Dublin, Ireland
| | - Hugo C. Temperley
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
| | - Emanuele Rausa
- Fondazione IRCCS Istituto Nazionale dei Tumori, 20133 Milan, Italy
| | - Brian J. Mehigan
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, D08 W9RT Dublin, Ireland
| | - Paul McCormick
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, D08 W9RT Dublin, Ireland
| | - John O. Larkin
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, D08 W9RT Dublin, Ireland
| | - Dara O. Kavanagh
- Royal College of Surgeons, D02 YN77 Dublin, Ireland
- Department of Surgery, Tallaght University Hospital, D24 NR0A Dublin, Ireland
| | - Michael E. Kelly
- Department of Surgery, St James’s Hospital, D08 NHY1 Dublin, Ireland
- School of Medicine, Trinity College Dublin, D08 W9RT Dublin, Ireland
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Shigaki T, Tsukada Y, Teramura K, Hasegawa H, Ikeda K, Nishizawa Y, Sasaki T, Ito M. Trans-anal surgery with the taTME technique for rectal gastrointestinal stromal tumors: a retrospective study. Int J Colorectal Dis 2022; 37:1975-1982. [PMID: 35943579 DOI: 10.1007/s00384-022-04233-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/03/2022] [Indexed: 02/04/2023]
Abstract
PURPOSE Rectal gastrointestinal stromal tumors (GISTs) surgery is often challenging owing to the anatomical constraints of the narrow pelvis and tumor hugeness. Despite the increasing number of patients undergoing trans-anal total mesorectal excision (taTME) globally, the feasibility of trans-anal surgery with the taTME technique for rectal GISTs remains unclear. We aimed to evaluate the feasibility of trans-anal surgery with the taTME technique for rectal GISTs. METHODS Using a prospectively collected database, we retrospectively analyzed the clinical findings, surgical outcomes, pathological outcomes, urinary and anal functions, and prognoses of patients who underwent trans-anal surgery with the taTME technique for primary rectal GISTs at the National Cancer Center Hospital East from September 2014 to March 2020. RESULTS Twenty-one patients with primary rectal GISTs were included in this study. The median distance from the anal verge to the lower edge of the tumor was 40 mm (range, 15-60 mm), and the median tumor size was 59 mm (range, 11-175 mm). Moreover, seven and 14 patients underwent one-team and two-team surgeries, respectively, with curative intent. Nineteen patients (90.5%) underwent anus-preserving surgery, and the urinary tracts were preserved in all cases. Two-team surgery showed a significantly lower blood loss volume and shorter operation time than one-team surgery (58 vs. 222 mL, P = 0.017; 184 vs 356 min, P = 0.041, respectively). The pathological negative-margin resection rate was 100%. During the follow-up period, no patient developed local GIST recurrence and one (4.8%) developed distant metastasis. CONCLUSION Trans-anal surgery with the taTME technique is feasible for rectal GISTs, and two-team surgery may be more advantageous than one-team surgery in terms of operation time and blood loss.
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Affiliation(s)
- Takahiro Shigaki
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Yuichiro Tsukada
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Koichi Teramura
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Hiro Hasegawa
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Koji Ikeda
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Yuji Nishizawa
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Takeshi Sasaki
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan
| | - Masaaki Ito
- Department of Colorectal Surgery, National Cancer Center Hospital East, 6-5-1 Kashiwanoha, Kashiwa, Chiba, 277-8577, Japan.
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3
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Yang J, Liu Y, Sun XJ, Ai ZW, Liu S. A rare rectal gastrointestinal stromal tumor with indolent biological behavior: A case study. Exp Ther Med 2022; 24:641. [PMID: 36160900 PMCID: PMC9468906 DOI: 10.3892/etm.2022.11578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 07/27/2022] [Indexed: 11/27/2022] Open
Abstract
The overall incidence of rectal gastrointestinal stromal tumor (RGIST) has risen, but it remains a rare disease. Furthermore, tumor rupture is associated with poor prognosis. The present study reported a rare case of RGIST with indolent biological behavior. The biological behavior of this RGIST was analyzed and its malignant potential was evaluated using a guideline-based risk stratification assessment. The patient was diagnosed with a rectal tumor at the Third Affiliated Hospital of Qiqihar Medical University (Qiqihar, China) in April 2020 and a partial resection biopsy was then performed. This resection counts as a rupture. The biopsy confirmed RGIST and the patient refused further examination and treatment due to economic concerns. However, the patient survives with no tumor progression and metastasis until now, May 2022. In conclusion, based on the present case, tumor rupture in indolent RGIST is not necessarily associated with poor outcome.
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Affiliation(s)
- Jian Yang
- Department of General Surgery, The First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang 154003, P.R. China
| | - Ying Liu
- Department of Medical Oncology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161000, P.R. China
| | - Xue-Jia Sun
- Department of Radiology, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161000, P.R. China
| | - Zhong-Wei Ai
- Pathology Center, Qiqihar Medical University, Qiqihar, Heilongjiang 161003, P.R. China
| | - Shi Liu
- Central Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161000, P.R. China
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Kim JC, Kim J, Jung J, Kim CW, Yoon YS, Park IJ. Implementation of robot-assisted curative resection for rare anorectal tumours on the basis of individualised treatment. Int J Med Robot 2021; 18:e2348. [PMID: 34741383 DOI: 10.1002/rcs.2348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 11/01/2021] [Accepted: 11/02/2021] [Indexed: 11/12/2022]
Abstract
PURPOSE To evaluate the validity of robot-assisted curative operation for rare anorectal tumours, characterised by biological heterogeneity and anatomical complexity. METHODS The present study evaluated 16 consecutive patients including three with anorectal squamous cell carcinoma (ARSCC), four with anorectal mucosal melanoma (ARMM), seven with anorectal neuroendocrine tumour (ARNET), and two with other types of anorectal tumours. RESULTS Of the three patients with ARSCC after chemoradiotherapy, two underwent abdominoperineal resection (APR), and one underwent ultralow anterior resection (uLAR)/total intersphincteric resection (ISR), surviving 56-76 months without recurrence. Of the four ARMM patients, APR and uLAR/total ISR were conducted in two patients, respectively, with variable survival outcomes. All seven patients with ARNET were treated with uLAR/ISR and LAR, surviving for 5-106 months to date. CONCLUSIONS Because most anorectal tumours are confined to the dermal and submucosal layers, robotic anorectal function preserving ISR is expected to achieve R0 resection.
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Affiliation(s)
- Jin Cheon Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Jihun Kim
- Department of Pathology, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Jay Jung
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Chan Wook Kim
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - Yong Sik Yoon
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
| | - In Ja Park
- Department of Surgery, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
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5
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Addley S, Alazzam M, Johnson C, Soleymani Majd H. Rectovaginal extragastrointestinal stromal tumour (EGIST): an additional entity to be considered in the differential diagnosis of tumours of the rectovaginal septum. BMJ Case Rep 2021; 14:14/3/e237669. [PMID: 33685909 PMCID: PMC7942270 DOI: 10.1136/bcr-2020-237669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Gastrointestinal stromal tumours (GISTs) are rare - and rectovaginal extragastrointestinal stromal tumours (RV-EGISTs) even rarer. We share a case of RV-EGIST, complemented by high-quality radiological and surgical images. A review of current literature pertaining to RV-EGIST is also included. Our case report highlights the diagnostic challenge presented by extragastrointestinal stromal tumours. Differentiated from overlapping pathologies only by targeted application of immunohistopathology and cytogenetics, the inclusion of RV-EGIST in the differential diagnosis of a rectovaginal tumour is essential to making this correct diagnosis. Primary surgery is the treatment of choice for RV-EGIST if complete cytoreduction can be achieved, combined with adjuvant tyrosine kinase inhibitor (TKI) therapy for those with high-risk features to further reduce rates of future recurrence.
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Affiliation(s)
- Susan Addley
- Department of Gynaecology Oncology, Oxford University Hospitals NHS Foundation Trust, Oxford, Oxfordshire, UK
| | - Moiad Alazzam
- Department of Gynaecology Oncology, Oxford University Hospitals NHS Foundation Trust, Oxford, Oxfordshire, UK
| | - Catherine Johnson
- Department of Radiology, Oxford University Hospitals NHS Foundation Trust, Oxford, Oxfordshire, UK
| | - Hooman Soleymani Majd
- Department of Gynaecology Oncology, Oxford University Hospitals NHS Foundation Trust, Oxford, Oxfordshire, UK
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6
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Li C, Wu H, Li H, Wang Q, Li Y, Gao ZD, Yang XD, Ye YJ, Jiang KW. Different Medical Features and Strategies of Large Rectal Gastrointestinal Stromal Tumor: A Multi-Central Pooling Analysis. Cancer Manag Res 2021; 13:1591-1600. [PMID: 33628049 PMCID: PMC7898204 DOI: 10.2147/cmar.s291269] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/13/2021] [Indexed: 12/12/2022] Open
Abstract
Purpose The rectum is a rare site for gastrointestinal stromal tumors (GISTs). Tumors in this critical anatomical site are prone to develop local recurrence, and this occurs at a high level even in low-risk tumors. Previous studies found that high-risk was the most common category in rectal gastrointestinal stromal tumors (RGISTs), and size was the most important factor affecting the long-term prognosis. We aimed to find out the most influential factor on clinical outcomes, and describe demographics, oncological differences, and surgical procedures in patients with poor prognosis. Patients and Methods Data on consecutive patients with RGIST, who were diagnosed at Peking University People’s Hospital, Shandong Province Hospital, and The First Affiliated Hospital of Shandong First Medical University from 2010 to 2020, were retrospectively evaluated. Further, a literature search was conducted by retrieving data from PubMed, EMBASE, and the Cochrane Library databases from inception up to March 20, 2020. Results In all, 50 patients were diagnosed with RGIST at three medical centers, and 86 published records were finally included in the literature review. Combined analysis of the whole individual patient data showed that 5.5 cm was deemed an appropriate cut-off value for L-RGIST, and that patients usually showed a male predominance (67.59%), younger age at onset (56.61 years), higher operative difficulty, and poorer prognosis. Conclusion Separation of patients with large RGIST from general patients may contribute to the recognition of the oncological characteristics and clinical management of this rare type of tumor.
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Affiliation(s)
- Chen Li
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Hao Wu
- Department of Gastroenterological Surgery, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, People's Republic of China
| | - Han Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University, Jinan, Shandong Province, People's Republic of China
| | - Quan Wang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Yang Li
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Zhi-Dong Gao
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xiao-Dong Yang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Ying-Jiang Ye
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
| | - Ke-Wei Jiang
- Department of Gastroenterological Surgery, Laboratory of Surgical Oncology, Beijing Key Laboratory of Colorectal Cancer Diagnosis and Treatment Research, Peking University People's Hospital, Beijing, People's Republic of China
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7
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Qin X, Li C, Yang Z, Guo W, Guo H, Chen C, Huang R, Zhang D, Wang H, Wang H. Transsacrococcygeal approach in rectal gastrointestinal stromal tumour resection: 10-year experience at a single centre. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:341. [PMID: 33708968 PMCID: PMC7944327 DOI: 10.21037/atm-20-8204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Background The transsacrococcygeal (TSC) approach in rectal gastrointestinal stromal tumour (GIST) resection is clinically challenging and controversial, and we evaluated its value in the present study. Methods We enrolled patients who underwent rectal GIST resection by the TSC approach during 2008–2018. The clinicopathological index, surgical outcome, and prognosis were analysed. Prognostic information was obtained from medical records and follow-up data. Anal function was evaluated by the low anterior resection syndrome (LARS) score. Results Among 88 rectal GIST patients over the 10-year study period, 17 who underwent the TSC approach were analysed. The median age was 55 (range, 26–73) years. In total, 15 patients received preoperative imatinib neoadjuvant therapy for 232 (30–690) days. The tumours were exogenous in 14 patients and intramural in 3 patients. The mean initial tumour size and preoperative tumour size were 6.4±2.2 and 4.2±1.7 cm, respectively. The operative time and blood loss were 130.2±47.4 min and 44.6±36.0 mL, respectively. Of the 17 patients 7 had postoperative complications (within 30 days postoperatively), and the complications of 5 patients were cured by conservative treatment. Only 1 patient was lost to follow-up, and the others had a good oncological prognosis at recent follow-up evaluations. All patients had LARS scores ≤9 points at 1 year after the operation. Conclusions The TSC approach can result in a good oncological prognosis, usually does not affect anal function, and is particularly suitable for exogenous middle and low rectal GISTs. However, it might cause some controlled complications. Hence, careful patient selection is necessary for this operation.
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Affiliation(s)
- Xiusen Qin
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuangkun Li
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zifeng Yang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wentai Guo
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huili Guo
- Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Department of Gastroenterology, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chun Chen
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rongkang Huang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Di Zhang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huaiming Wang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hui Wang
- Department of Colorectal Surgery, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Institute of Gastroenterology, Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, Supported by National Key Clinical Discipline, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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8
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Jiaxin L, Peiyun Z, Zheng T, Wei Y, Shanshan S, Lei R, Zhengwen X, Yong F, Xiaodong G, Anwei X, Kuntang S, Yingyong H. Comparison of prognostic prediction models for rectal gastrointestinal stromal tumor. Aging (Albany NY) 2020; 12:11416-11430. [PMID: 32561689 PMCID: PMC7343501 DOI: 10.18632/aging.103204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/17/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Rectal gastrointestinal stromal tumors (RGISTs) are biologically characterized tumors that are relatively rare. Thus, few studies have reported a specific prognostic system for this subset of tumors but integrated it into parallel systems, such as small intestine. Our aim is to develop a new predictive staging system nomogram (named FD-ZS system) for RGISTs. RESULTS Tumor size and mitotic rate were independent risk factors for tumor recurrence in RGISTs according to univariate and multivariate survival analyses. A prognostic predictive nomogram was developed, and a cut-off value of 65 points was calculated by X-tile to discriminate risk based on tumor size and mitotic rate. The C-indices for the FD-ZS, FD-Hou, NIH, and WHO systems were 0.706, 0.693, 0.687, and 0.680, respectively. CONCLUSION In the present study, a concise two-tier grading system (FD-ZS) for prognostic prediction of RGISTs that is simpler to several reported systems was developed, and a cut-off value was established to help RGIST patients determine whether to undergo adjuvant imatinib treatment. METHODS A nomogram was employed, and its predictive accuracy and discriminative ability were determined by concordance index (C-index) and calibration curve analyses. The nomogram was then compared with three stratification systems used for GISTs (FD-Hou, NIH, and WHO).
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Affiliation(s)
- Liu Jiaxin
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China.,Shanghai Chest Hospital, Shanghai Jiao Tong University, Department of Pathology, Shanghai, China
| | - Zhou Peiyun
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Tang Zheng
- Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Shanghai, China
| | - Yuan Wei
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shen Shanshan
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ren Lei
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xing Zhengwen
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Fang Yong
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Gao Xiaodong
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xue Anwei
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shen Kuntang
- Department of General Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hou Yingyong
- Department of Pathology, Zhongshan Hospital, Fudan University, Shanghai, China
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9
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Sun Q, Su N, Li X, Hu Z, Wang W. Open transanal resection of low rectal stromal tumor following neoadjuvant therapy of imatinib mesylate: Report of 11 cases and review of literature. Asia Pac J Clin Oncol 2020; 16:123-128. [PMID: 31957191 DOI: 10.1111/ajco.13292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 10/26/2019] [Indexed: 01/30/2023]
Abstract
OBJECTIVE The global burden of rectal gastrointestinal stromal tumor (GIST) is increasing. However, a limited number of reports hinder our ability to reach a definitive conclusion regarding the current treatment and prognosis. In this study, we outline our experience with open transanal resection of rectal GIST following neoadjuvant therapy with imatinib mesylate (IM). PATIENTS AND METHODS We retrospectively analyzed 11 patients with rectal GISTs treated with neoadjuvant IM therapy and open transanal resection between April 2011 and April 2017 in Shanghai Changzheng Hospital. RESULTS The patients had 400-600 mg/day IM once daily for a median of 7 months (range: 3-9 months). Tumor size, distance from the lower margin of the tumor to the anal verge (AV), mitotic rates and mutation analysis were assessed on pretreatment biopsy. After reassessment, all 11 patients underwent transanal R0 resection. With median follow-up of 28 months (range: 8-80 months), there was no tumor recurrence or metastasis. CONCLUSION Open transanal resection of rectal GIST after neoadjuvant treatment with IM has good surgical and survival outcomes.
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Affiliation(s)
- Qiang Sun
- Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Ning Su
- Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Xinxing Li
- Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Zhiqian Hu
- Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
| | - Weijun Wang
- Department of General Surgery, Changzheng Hospital, The Second Military Medical University, Shanghai, China
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10
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Stuart E, Banerjee S, de la Torre J, Wang Y, Scherzer N, Burgoyne AM, Parry L, Fanta PT, Ramamoorthy S, Sicklick JK. Frequent rectal gastrointestinal stromal tumor recurrences in the imatinib era: Retrospective analysis of an International Patient Registry. J Surg Oncol 2019; 120:715-721. [PMID: 31297829 PMCID: PMC6699886 DOI: 10.1002/jso.25621] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 06/22/2019] [Indexed: 11/10/2022]
Abstract
INTRODUCTION Rectal gastrointestinal stromal tumor (GIST) is rare and comprises about 3% of GIST. METHODS Registry data was collected by the Life Raft Group June 1976 to November 2017. All patients had a histologic GIST diagnosis. Demographic, clinicopathologic, and clinical outcome data were patient reported. Recurrence-free survival (RFS) was analyzed using the Kaplan-Meier method and Cox regression analysis. RESULTS Of 1798 patients in the database, 48 had localized rectal GIST (2.7%). Patients were frequently male (58.3%) and non-Hispanic whites (58.3%). Median age at diagnosis was 52 years. Most patients (77%) were diagnosed in the imatinib era (2001 to current). Over half (54.2%) of the cohort had mutation testing and all profiled tumors possessed KIT mutations (exon 9: 7.7%, exon 11: 88.5%, and exon 13: 3.8%). Most evaluable patients (26/28; 92.9%) had high-risk disease (modified NIH criteria) and nearly all patients (95.8%) received imatinib. Median follow-up was 8.8 years (range, 0.3-30.7) and overall RFS was 8.0 years (95% CI, 2.9-13.1). Thirty-two percent (12/37) of patients in the post-imatinib era developed recurrent disease. Diagnosis in the imatinib era was associated with improved RFS (HR = 0.22, 95% CI, 0.08-0.62; P = .004) in the multivariable model. CONCLUSION We find that disease recurrence remains prevalent in one-third of patients treated during the imatinib-era.
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Affiliation(s)
- Emelia Stuart
- School of Medicine, University of California, San Diego, La Jolla, CA
| | - Sudeep Banerjee
- Division of Surgical Oncology, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, CA
- Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, CA
| | - Jorge de la Torre
- Division of Surgical Oncology, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, CA
| | - Yu Wang
- Life Raft Group, Wayne, NJ, United States
| | | | - Adam M. Burgoyne
- School of Medicine, University of California, San Diego, La Jolla, CA
- Division of Hematology Oncology, Department of Medicine, Moores Cancer Center, University of California, San Diego, La Jolla, CA
| | - Lisa Parry
- School of Medicine, University of California, San Diego, La Jolla, CA
- Division of Colorectal Surgery, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, CA
| | - Paul T. Fanta
- School of Medicine, University of California, San Diego, La Jolla, CA
- Division of Hematology Oncology, Department of Medicine, Moores Cancer Center, University of California, San Diego, La Jolla, CA
| | - Sonia Ramamoorthy
- School of Medicine, University of California, San Diego, La Jolla, CA
- Division of Colorectal Surgery, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, CA
| | - Jason K. Sicklick
- School of Medicine, University of California, San Diego, La Jolla, CA
- Division of Surgical Oncology, Department of Surgery, Moores Cancer Center, University of California, San Diego, La Jolla, CA
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11
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Wu X, Li J, Xu W, Gao J, Li Y, Shen L. Postoperative imatinib in patients with intermediate risk gastrointestinal stromal tumor. Future Oncol 2018; 14:1721-1729. [PMID: 29969914 DOI: 10.2217/fon-2017-0691] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: To determine whether imatinib adjuvant treatment improved recurrence-free survival (RFS) in gastrointestinal stromal tumor (GIST) with intermediate risk. Materials & methods: Patients who had undergone complete tumor resection with intermediate risk were enrolled. Results: A total of 99 patients received imatinib adjuvant therapy and 93 patients only received observation. The RFS in patients who received adjuvant therapy was superior to RFS in control group (p = 0.004). GIST with location of intestine or rectum and GIST with exon 11 deletion mutation had longer RFS. Conclusion: Adjuvant imatinib improves RFS of GIST with intermediate risk of recurrence, particularly in GIST with intestinal and rectal location or c-kit gene exon 11 deletion mutation.
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Affiliation(s)
- Xin Wu
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, PR China
| | - Jian Li
- Department of GI Oncology, Laboratory of Carcinogenesis & Translational Research for the Ministry of National Education, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing 100142, PR China
| | - Wentong Xu
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, PR China
| | - Jing Gao
- Department of GI Oncology, Laboratory of Carcinogenesis & Translational Research for the Ministry of National Education, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing 100142, PR China
| | - Yanyan Li
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, PR China
| | - Lin Shen
- Department of GI Oncology, Laboratory of Carcinogenesis & Translational Research for the Ministry of National Education, Peking University School of Oncology, Beijing Cancer Hospital & Institute, Beijing 100142, PR China
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12
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Kameyama H, Kanda T, Tajima Y, Shimada Y, Ichikawa H, Hanyu T, Ishikawa T, Wakai T. Management of rectal gastrointestinal stromal tumor. Transl Gastroenterol Hepatol 2018; 3:8. [PMID: 29552659 DOI: 10.21037/tgh.2018.01.08] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Accepted: 01/16/2018] [Indexed: 12/18/2022] Open
Abstract
Gastrointestinal stromal tumor (GIST) is the most common mesenchymal neoplasm of the gastrointestinal tract. However, rectal GIST is rare, the incident rate of it is approximately 5% of all GISTs. Rectal GIST symptoms generally include bleeding and/or pain and occasionally, urinary symptoms. Immunohistochemical evaluation finds that most rectal GIST tumors are CD117 (KIT) positive, and are sometimes CD34, platelet-derived growth factor receptor alpha (PDGFRA), smooth muscle actin, S-100, or vimentin positive. The National Institutes of Health (NIH) classifies rectal GIST as very-low risk, low risk, intermediate risk, or high risk, and the frequencies have been estimated as 0-23.8% for very-low risk, 0-45% for low risk, 0-34% for intermediate risk, and 21-100% for high risk tumors. The first-line treatment for localized GIST is curative resection, but is difficult in rectal GIST because of anatomical characteristics such as the deep, narrow pelvis and proximity to the sphincter muscle or other organs. Several studies noted the efficacy of the minimally invasive surgery, such as trans-anal, trans-sacral, trans-vaginal resection, or laparoscopic resection. The appropriate surgical procedure should be selected depending on the case. Imatinib mesylate (IM) is indicated as first-line treatment of metastatic or unresectable GIST, and clinical outcomes are correlated with KIT mutation genotype. However, the KIT mutation genotypes in rectal GIST are not well known. In this review, as in other GISTs, a large proportion (59-100%) of rectal GISTs carry exon 11 mutations. Although curative resection is indicated for localized rectal GIST, a high rate of local recurrence is a problem. Multimodal therapy including perioperative IM may improve postoperative outcomes, contributing to anus-preserving surgery. Moreover, KIT mutation analysis before IM treatment is important. This review summarizes current treatment strategies for rectal GIST.
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Affiliation(s)
- Hitoshi Kameyama
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Tatsuo Kanda
- Department of Surgery, Sanjo General Hospital, Niigata, Japan
| | - Yosuke Tajima
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Yoshifumi Shimada
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Hiroshi Ichikawa
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takaaki Hanyu
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takashi Ishikawa
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Toshifumi Wakai
- Division of Digestive and General Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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13
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Cavnar MJ, Wang L, Balachandran VP, Antonescu CR, Tap WD, Keohan M, Singer S, Temple L, Nash GM, Weiser MR, Guillem JG, Aguilar JG, DeMatteo RP, Paty PB. Rectal Gastrointestinal Stromal Tumor (GIST) in the Era of Imatinib: Organ Preservation and Improved Oncologic Outcome. Ann Surg Oncol 2017; 24:3972-3980. [PMID: 29058144 DOI: 10.1245/s10434-017-6087-9] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Indexed: 12/31/2022]
Abstract
BACKGROUND Approximately 5% of gastrointestinal stromal tumors (GISTs) originate in the rectum, and historically, radical resection was commonly performed. Little is known about the outcome for rectal GIST in the era of imatinib. METHODS Using a prospectively maintained database, this study retrospectively analyzed 47 localized primary rectal GISTs treated at our center from 1982 to 2016, stratified by when imatinib became available in 2000. Overall survival (OS), disease-specific survival (DSS), and recurrence-free survival (RFS) were analyzed by the Kaplan-Meier method. RESULTS Rectal GISTs represented 7.1% of 663 primary GISTs. The findings showed 17 patients in the pre-imatinib era and 30 patients in the imatinib era. The two groups had similar follow-up evaluation, age, gender, Miettinen risk, and distance to the anal verge. In the imatinib era, tumors were smaller at diagnosis (median 4 vs. 5 cm; p = 0.029), and 24 of the 30 patients received perioperative imatinib. In the high-risk patients, organ preservation and negative margins were more common among the 13 patients treated with neoadjuvant imatinib than among the 21 patients treated directly with surgery. High-risk patients who received perioperative imatinib (n = 15) had greater (or nearly significantly greater) 5-year OS, DSS, local RFS, and distant RFS than those who did not (n = 19) (91, 100, 100, and 71% vs. 47, 65, 74, and 41%; p = 0.049, 0.052, 0.077, 0.051, respectively). In the imatinib era, no patient has had a local recurrence or death due to GIST. CONCLUSIONS The use of imatinib is associated with organ preservation and improved oncologic outcome for patients with rectal GIST.
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Affiliation(s)
- Michael J Cavnar
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Surgery, University of Kentucky, Lexington, KY, USA
| | - Lin Wang
- Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Beijing, China
| | - Vinod P Balachandran
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Cristina R Antonescu
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - William D Tap
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mary Keohan
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sam Singer
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Larissa Temple
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Garrett M Nash
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Martin R Weiser
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jose G Guillem
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Julio Garcia Aguilar
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ronald P DeMatteo
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Philip B Paty
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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14
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Wada N, Takahashi T, Kurokawa Y, Nakajima K, Masuzawa T, Nakatsuka R, Kawada J, Nishida T, Kimura Y, Tanaka K, Miyazaki Y, Makino T, Yamasaki M, Takiguchi S, Mori M, Doki Y. Appropriate Follow-Up Strategies for Gastrointestinal Stromal Tumor Patients Based on the Analysis of Recurrent Interval and Patterns. Digestion 2017; 95:115-121. [PMID: 28161699 DOI: 10.1159/000452656] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/18/2016] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIMS Previous studies have proposed risk classifications for patients with gastrointestinal stromal tumor (GIST) after resection and have contributed to the prediction of its prognosis. However, optimal postoperative surveillance has not yet been established. METHODS We retrospectively analyzed data from 115 GIST patients who experienced recurrence after complete resection. The relationships between clinicopathological characteristics and the first recurrence sites, or time to recurrence (TTR), were investigated. We also compared the characteristics between 2 subgroups based on a TTR of ≤5 or >5 years. RESULTS The first recurrence occurred in the abdomen in 114 of 115 patients (99.1%); one case of esophageal GIST recurred in the lung. Gastric and small intestinal GISTs recurred most frequently in the liver or peritoneum, while the most common recurrences of colorectal GISTs were found to be local. Fourteen patients (12.2%) experienced recurrence after >5 years. Smaller tumors and those categorized as lower risk were significantly more frequent in the TTR >5 years group than in the TTR ≤5 years group. In the TTR >5 years group, local recurrence was the most frequent type of recurrence (42.9%). CONCLUSION Based on abdominal examination, postoperative surveillance after complete resection for primary GISTs may be recommended for >5 years.
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Affiliation(s)
- Noriko Wada
- Department of Gastroenterological Surgery, Osaka University Graduate School of Medicine, Osaka, Japan
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15
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López-López V, Fernández JÁ, Parrilla P. Utility of neoadjuvant therapy in rectal GIST. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2017; 109:534-535. [PMID: 28530109 DOI: 10.17235/reed.2017.4751/2016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Neoadjuvant therapy with Imatinib is the preferred treatment for rectal GISTs in order to reduce the aggressiveness of a surgical resection. At present, surgical resection does not require wide surgical margins. There is also a lot of controversy with regard to the need for a broad anatomical resection or if a local resection is sufficient and maintains maximum oncological safety and minimum morbidity and mortality. We present a case report of a rectal GIST with a good response to neoadjuvant treatment which allowed a transanal resection.
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Affiliation(s)
- Víctor López-López
- Cirugía General y del Aparato Digestivo, Hospital Universitario Virgen de la Arrixa, España
| | | | - Pascual Parrilla
- Cirugía General y del Aparato Digestivo, Hospital Clínico Universitario Virgen de la Arrixaca, España
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16
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Laparoscopic en bloc excision of gastrointestinal stromal tumors of the rectum after neoadjuvant imatinib therapy: anteriorly extended intersphincteric resection combined with partial resection of the prostate. Tech Coloproctol 2014; 19:247-51. [DOI: 10.1007/s10151-014-1261-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 11/05/2014] [Indexed: 10/24/2022]
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17
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Sun LF, He JJ, Yu SJ, Xu JH, Wang JW, Li J, Song YM, Ding KF, Zheng S. Transsacral excision with pre-operative imatinib mesylate treatment and approach for gastrointestinal stromal tumors in the rectum: A report of two cases. Oncol Lett 2014; 8:1455-1460. [PMID: 25202349 PMCID: PMC4156190 DOI: 10.3892/ol.2014.2406] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 07/15/2014] [Indexed: 12/29/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are rare in the rectum. Radical surgery, such as an abdominoperineal resection, is necessary for large rectal GISTs, which can result in the loss of function of involved organs. Imatinib mesylate can be used as perioperative therapy and may reduce tumor size, and it is now approved for use in the adjuvant therapy of locally resected anorectal GISTs. The present study describes two cases of large rectal GISTs, for which abdominoperineal resections were initially planned. The two patients received pre-operative imatinib mesylate treatment, and the therapeutic response was assessed by magnetic resonance imaging. Finally, transsacral local resection was successfully performed for these two GISTs. A macroscopically complete resection was achieved, and microscopically, the resection margin was negative. One patient experienced the complication of rectal leakage, which was successfully managed by drainage. No recurrence occurred in the two patients after more than two years. Pre-operative imatinib mesylate therapy with subsequent transsacral local resection for selected rectal GISTs is a feasible treatment modality and can prevent extended surgery.
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Affiliation(s)
- Li-Feng Sun
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jin-Jie He
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Shao-Jun Yu
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jing-Hong Xu
- Department of Pathology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jian-Wei Wang
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Jun Li
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Yong-Mao Song
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Ke-Feng Ding
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
| | - Shu Zheng
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310009, P.R. China
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18
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Corless CL. Gastrointestinal stromal tumors: what do we know now? Mod Pathol 2014; 27 Suppl 1:S1-16. [PMID: 24384849 DOI: 10.1038/modpathol.2013.173] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 06/15/2013] [Accepted: 06/17/2013] [Indexed: 12/15/2022]
Abstract
Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors of the GI tract, arising from the interstitial cells of Cajal, primarily in the stomach and small intestine. They manifest a wide range of morphologies, from spindle cell to epithelioid, but are immunopositive for KIT (CD117) and/or DOG1 in essentially all cases. Although most tumors are localized at presentation, up to half will recur in the abdomen or spread to the liver. The growth of most GISTs is driven by oncogenic mutations in either of two receptor tyrosine kinases: KIT (75% of cases) or PDGFRA (10%). Treatment with tyrosine kinase inhibitors (TKIs) such as imatinib, sunitinib, and regorafenib is effective in controlling unresectable disease; however, drug resistance caused by secondary KIT or PDGFRA mutations eventually develops in 90% of cases. Adjuvant therapy with imatinib is commonly used to reduce the likelihood of disease recurrence after primary surgery, and for this reason assessing the prognosis of newly resected tumors is one of the most important roles for pathologists. Approximately 15% of GISTs are negative for mutations in KIT and PDGFRA. Recent studies of these so-called wild-type GISTs have uncovered a number of other oncogenic drivers, including mutations in neurofibromatosis type I, RAS genes, BRAF, and subunits of the succinate dehydrogenase complex. Routine genotyping is strongly recommended for optimal management of GISTs, as the type and dose of TKI used for treatment is dependent on the mutation identified.
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Affiliation(s)
- Christopher L Corless
- Department of Pathology (L471) and Knight Diagnostic Laboratories, Oregon Health and Science University, Portland, OR, USA
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19
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Pucciarelli S, Maretto I. Which is the best surgical approach for anorectal gastrointestinal stromal tumors in the post-imatinib era? Tech Coloproctol 2013; 17:477-8. [PMID: 23624793 DOI: 10.1007/s10151-013-1015-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 04/11/2013] [Indexed: 11/24/2022]
Affiliation(s)
- S Pucciarelli
- Clinica Chirurgica I, Department of Surgery, Oncology, and Gastroenterology, University of Padua, Via Giustiniani, 2, 35128, Padua, Italy,
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