Objective: To demonstrate the immunohistochemical and epidemiological characteristics of gastrointestinal stromal tumors (GIST) in a Middle Eastern population.
Methods: This is a retrospective analysis of all intra-abdominal mesenchymal tumors (excluding childhood embryonal rhabdomyosarcoma and small round blue cell tumors) collected from the archives of the Pathology Departments of King Hussein Cancer Center, Amman, and King Abdullah University Hospital, Irbid, Jordan between 2001 and 2008. The immunohistochemical profile of all cases was studied at King Hussein Cancer Center, Amman, Jordan, between January and August 2009.
Results: Gastrointestinal stromal tumors comprised 45% of the intra-abdominal mesenchymal tumors (42 out of 93 cases), with the most common site being the stomach (n=17, 40.5%). Twenty-seven GIST cases (64.3%) were classified as high risk, 4 (9.5%) as intermediate risk, 6 (14.3%) as low risk, and 2 (4.8%) as very low risk. Immunohistochemistry showed diffuse and strong positivity (+3) for CD117 in 85.7% of GIST cases, and for CD34 in 65% of cases. The high-risk tumors were more common in male patients (M:F=1.7:1), while the non-high risk tumors were more common in female patients.
Conclusion: The immunohistochemical profile of GIST in Jordanian patients is similar to previously published data from other populations, with a slight male preponderance for high-risk GISTs.
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Cureus
December 2024
Department of Pathology, General Hospital of Thessaloniki Agios Pavlos, Thessaloniki, GRC.
The term "gossypiboma" or "textiloma" is used to describe a mass of retained cotton matrix and the surrounding inflammatory response inside a body cavity following surgical intervention. The precise incidence of this phenomenon is uncertain, as cases are frequently underreported due to concerns related to medical malpractice. This rare complication poses a diagnostic dilemma due to the non-specific clinical and radiological features, which can result in significant morbidity and mortality.
View Article and Find Full Text PDFArch Orthop Trauma Surg
January 2025
Department of Orthopaedics and Trauma, Medical University of Graz, Auenbruggerplatz 5, 8036, Graz, Austria.
Introduction: Liquid biopsy as a non-invasive method to investigate cancer biology and monitor residual disease has gained significance in clinical practice over the years. Whilst its applicability in carcinomas is well established, the low incidence and heterogeneity of bone and soft tissue sarcomas explains the less well-established knowledge considering liquid biopsy in these highly malignant mesenchymal neoplasms.
Materials And Methods: A systematic literature review adhering to the PRISMA guidelines initially identified 920 studies, of whom 68 original articles could be finally included, all dealing with clinical applicability of liquid biopsy in sarcoma.
Cancers (Basel)
December 2024
Sarcoma Unit, The Royal Marsden Hospital and Institute of Cancer Research, London SW3 6JZ, UK.
There has been noteworthy progress in molecular characterisation and therapeutics in soft tissue sarcomas. Novel agents have gained regulatory approval by the FDA. Examples are the tyrosine kinase inhibitors avapritinib and ripretinib in gastrointestinal stromal tumours (GIST), the immune check point inhibitor atezolizumab in alveolar soft part tissue sarcoma, the γ-secretase inhibitor nirogacestat in desmoid tumours, the NTRK inhibitors larotrectinib and entrectinib in tumours with fusions, the mTOR inhibitor nab-sirolimus in PEComa, and the EZH-2 inhibitor tazemetostat in epithelioid sarcoma.
View Article and Find Full Text PDFMedicine (Baltimore)
January 2025
Department of Pathology, Keck School of Medicine, University of Southern California, Los Angeles, CA.
Rationale: Solitary fibrous tumors (SFTs) are spindle cell tumors that typically occur in the pleura and peritoneum, but very rarely in the stomach. To our best knowledge, there are only 10 cases reported in English literature. We reported a case of primary stomach SFT and summarized the characteristics of all previous cases, suggesting that pathologists and surgeons should include this disease in the differential diagnosis list of primary mesenchymal tumor of the stomach.
View Article and Find Full Text PDFMinim Invasive Ther Allied Technol
January 2025
Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing, China.
Background: The aim of this study was to verify the safety and efficacy of endoscopic resection (ER) for gastric gastrointestinal stromal tumors (GISTs).
Methods: Among a consecutive series of resections for gastric GISTs performed in a single center, the outcomes of patients who had ER were compared to standard surgical resection (SR).
Results: In the cohort, 329 consecutive primary localized gastric GISTs patients (, ER/SR = 251/78) were enrolled.
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