Abstract
Limited information is available concerning the clinicopathologic profile of colorectal gastrointestinal stromal tumors (GISTs), which are relatively rare, as well as survival rates following surgical resection. The present study was designed to describe the clinicopathologic characteristics of patients with colorectal GISTs and identify potential factors that may predict postoperative survival outcomes. We reviewed the medical records of 67 patients with colorectal GISTs who underwent surgical resection between January 2000 and December 2012. Clinicopathologic factors affecting overall survival were assessed using the Kaplan-Meier method and multivariate Cox proportional hazards models. The median age at diagnosis was 57 years (range, 32–79 years), with a male-to-female ratio of 1.68. Tumor size varied from 0.2 to 11 cm, with a median size of 5.7 cm. Sixty-two tumors (93 %) were positive for CD117, 53 (79 %) for CD34, 6 (9 %) for PDGFRA, 15 (22 %) for SMA, 5 (8 %) for S100, and 39 (58 %) for vimentin. The overall median survival time was 54 months (95 % confidence interval, 32–59 months), and the 1-, 3-, and 5-year overall survival rates were 89.6, 63.9, and 34.4 %, respectively. High-risk tumors (determined by histologic grade, size, and other histologic variables) were associated with poor prognosis (hazard ratio, 1.83; 95 % confidence interval, 1.21–2.78), and patients who received adjuvant treatment with imatinib had significantly longer median overall survival times than patients who did not (hazard ratio, 0.43; 95 % confidence interval, 0.24–0.80). In patients with colorectal GISTs, high-risk tumor histologic grade can predict poor prognosis, and patients may benefit from adjuvant treatment with imatinib. Findings from the present study may provide information to establish evidence-based management strategies for colorectal GISTs.
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Miettinen M, Sarlomo-Rikala M, Lasota J. Gastrointestinal stromal tumours. Ann Chir Gynaecol. 1998;87(4):278–81.
Miettinen M, Sarlomo-Rikala M, Lasota J. Gastrointestinal stromal tumors: recent advances in understanding of their biology. Hum Pathol. 1999;30(10):1213–20.
Kisluk J, Gryko M, Guzinska-Ustymowicz K, Kemona A, Kedra B. Immunohistochemical diagnosis of gastrointestinal stromal tumors—an analysis of 80 cases from 2004 to 2010. Adv Clin Exp Med. 2013;22(1):33–9.
Miettinen M, Sarlomo-Rikala M, Sobin LH, Lasota J. Gastrointestinal stromal tumors and leiomyosarcomas in the colon: a clinicopathologic, immunohistochemical, and molecular genetic study of 44 cases. Am J Surg Pathol. 2000;24(10):1339–52.
Bamboat ZM, Dematteo RP. Updates on the management of gastrointestinal stromal tumors. Surg Oncol Clin N Am. 2012;21(2):301–16. doi:10.1016/j.soc.2011.12.004.
Rammohan A, Sathyanesan J, Rajendran K, Pitchaimuthu A, Perumal SK, Srinivasan U, et al. A gist of gastrointestinal stromal tumors: a review. World J Gastrointest Oncol. 2013;5(6):102–12. doi:10.4251/wjgo.v5.i6.102.
Xiao CC, Zhang S, Wang MH, Huang LY, Wu P, Xu Y, et al. Clinicopathological features and prognostic factors of rectal gastrointestinal stromal tumors. J Gastrointest Surg. 2013;17(4):793–8. doi:10.1007/s11605-012-2086-0.
Macias-Garcia F, Parada P, Martinez-Lesquereux L, Pintos E, Fraga M, Dominguez-Munoz JE. Gastrointestinal stromal tumors (GISTs) of the colon. Rev Esp Enferm Dig. 2010;102(6):388–90.
Hassan I, You YN, Dozois EJ, Shayyan R, Smyrk TC, Okuno SH, et al. Clinical, pathologic, and immunohistochemical characteristics of gastrointestinal stromal tumors of the colon and rectum: implications for surgical management and adjuvant therapies. Dis Colon Rectum. 2006;49(5):609–15. doi:10.1007/s10350-006-0503-8.
Hassan I, You YN, Shyyan R, Dozois EJ, Smyrk TC, Okuno SH, et al. Surgically managed gastrointestinal stromal tumors: a comparative and prognostic analysis. Ann Surg Oncol. 2008;15(1):52–9. doi:10.1245/s10434-007-9633-z.
Dematteo RP, Gold JS, Saran L, Gonen M, Liau KH, Maki RG, et al. Tumor mitotic rate, size, and location independently predict recurrence after resection of primary gastrointestinal stromal tumor (GIST). Cancer. 2008;112(3):608–15. doi:10.1002/cncr.23199.
Martin J, Poveda A, Llombart-Bosch A, Ramos R, Lopez-Guerrero JA, Garcia del Muro J, et al. Deletions affecting codons 557–558 of the c-KIT gene indicate a poor prognosis in patients with completely resected gastrointestinal stromal tumors: a study by the Spanish Group for Sarcoma Research (GEIS). J Clin Oncol. 2005;23(25):6190–8.
Miettinen M, Lasota J. Gastrointestinal stromal tumors—definition, clinical, histological, immunohistochemical, and molecular genetic features and differential diagnosis. Virchows Arch. 2001;438(1):1–12.
Shi Y, Hou YY, Lu SH, Zhou Y, Xu JF, Ji Y, et al. Clinical and pathological studies of borderline gastrointestinal stromal tumors. Chin Med J (Engl). 2010;123(18):2514–20.
Bulbul DG. Gastrointestinal stromal tumors: a multicenter study of 1160 Turkish cases. Turk J Gastroenterol. 2012;23(3):203–11.
Boni L, Benevento A, Dionigi G, Rovera F, Dionigi R. Surgical resection for gastrointestinal stromal tumors (GIST): experience on 25 patients. World J Surg Oncol. 2005;3:78. doi:10.1186/1477-7819-3-78.
DeMatteo RP, Lewis JJ, Leung D, Mudan SS, Woodruff JM, Brennan MF. Two hundred gastrointestinal stromal tumors: recurrence patterns and prognostic factors for survival. Ann Surg. 2000;231(1):51–8.
Ng EH, Pollock RE, Munsell MF, Atkinson EN, Romsdahl MM. Prognostic factors influencing survival in gastrointestinal leiomyosarcomas. Implications for surgical management and staging. Ann Surg. 1992;215(1):68–77.
Fletcher CD, Berman JJ, Corless C, Gorstein F, Lasota J, Longley BJ, et al. Diagnosis of gastrointestinal stromal tumors: a consensus approach. Int J Surg Pathol. 2002;10(2):81–9.
Theodoropoulos DG. Gastrointestinal tumors of the colon and rectum. Clin Colon Rectal Surg. 2011;24(3):161–70. doi:10.1055/s-0031-1286000.
Wu TJ, Lee LY, Yeh CN, Wu PY, Chao TC, Hwang TL, et al. Surgical treatment and prognostic analysis for gastrointestinal stromal tumors (GISTs) of the small intestine: before the era of imatinib mesylate. BMC Gastroenterol. 2006;6:29. doi:10.1186/1471-230X-6-29.
El-Zohairy M, el Khalil SA, Fakhr I, El-Shahawy M, Gouda I. Gastrointestinal stromal tumor (GIST)’s surgical treatment, NCI experience. J Egypt Natl Canc Inst. 2005;17(2):56–66.
Linch M, Claus J, Benson C. Update on imatinib for gastrointestinal stromal tumors: duration of treatment. Onco Targets Ther. 2013;6:1011–23. doi:10.2147/OTT.S31260.
Tielen R, Verhoef C, van Coevorden F, Gelderblom H, Sleijfer S, Hartgrink HH, et al. Surgery after treatment with imatinib and/or sunitinib in patients with metastasized gastrointestinal stromal tumors: is it worthwhile? World J Surg Oncol. 2012;10:111. doi:10.1186/1477-7819-10-111.
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Zhongguo Zhou and Zhanpeng Chen contributed to this work equally.
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Zhou, Z., Chen, Z., Chen, M. et al. Clinicopathologic factors predicting outcomes in patients with gastrointestinal stromal tumors of the rectum and colon. Tumor Biol. 35, 4357–4362 (2014). https://doi.org/10.1007/s13277-013-1572-7
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DOI: https://doi.org/10.1007/s13277-013-1572-7