Abstract
Background: Duodenal gastrointestinal stromal tumors (GISTs) are rare tumors of the gastrointestinal tract. It should be considered in the differential diagnosis of periampullary region pathologies.
Case Report: A 24-year-old male patient applied to the general surgery department with the complaint of long-standing abdominal pain, nausea and vomiting after meals, and 8-10 kg weight loss in 1 month. Three-phase dynamic abdominopelvic CT showed that the 1st and the 2nd segments of the duodenum were dilated. At this level, a peripherally intensely contrasted heterogeneous mass lesion, 91x70x46 mm in size, was observed. There was oral contrast and air values in the center of the mass. A fistulized mass connected with the duodenal wall was considered in the differential diagnosis. In the surgical exploration, a soft, vascularized mass fistulized to the 2nd segment of the duodenum was observed. Pathological diagnosis was reported as GIST.
Conclusion: GISTs arise from the precursors of Cajal Interstitial cells of the gastrointestinal tract. Contrast-enhanced CT is the preferred diagnostic method for staging, risk stratification, and follow-up. We presented a young case with a giant duodenal GIST and discussed differential diagnosis and some diagnostic properties.
Keywords: Gastrointestinal stromal tumor, Case report, Duodenum, Fistula, Tomography, Diagnosis.
[http://dx.doi.org/10.21037/jgo.2018.08.20] [PMID: 30788170]
[http://dx.doi.org/10.1186/s12885-018-4485-4] [PMID: 29764388]
[http://dx.doi.org/10.2214/AJR.14.12870] [PMID: 25905932]
[http://dx.doi.org/10.1186/s12893-015-0084-3] [PMID: 26276408]
[http://dx.doi.org/10.21037/jgo.2017.10.09] [PMID: 29299364]
[http://dx.doi.org/10.1097/00000478-198309000-00001] [PMID: 6625048]
[http://dx.doi.org/10.3748/wjg.v24.i26.2806] [PMID: 30018476]
[http://dx.doi.org/10.1126/science.279.5350.577] [PMID: 9438854]
[http://dx.doi.org/10.1126/science.1079666] [PMID: 12522257]
[PMID: 9588894]
[PMID: 11005253]
[http://dx.doi.org/10.1053/hupa.2002.123545] [PMID: 12094370]
[http://dx.doi.org/10.1016/j.humpath.2008.06.025] [PMID: 18774375]
[http://dx.doi.org/10.3748/wjg.v20.i24.7864] [PMID: 24976723]
[http://dx.doi.org/10.1097/RCT.0000000000000526] [PMID: 27824674]
[http://dx.doi.org/10.1148/radiol.2521081441] [PMID: 19561251]
[http://dx.doi.org/10.1007/s004280000338] [PMID: 11213830]
[http://dx.doi.org/10.1097/00000478-199901000-00009] [PMID: 9888707]
[http://dx.doi.org/10.4103/2303-9027.163018] [PMID: 26374586]