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    Rectal gastrointestinal stromal tumors are rare and optimal treatment is yet to be defined. The aim of this report is to highlight the possible aggressive behavior of four cases of rectal GISTs treated with neoadjuvant imatinib in a tertiary care medical hospital. Four cases of rectal GISTs were retrospectively reviewed for patients demographics, clinical presentation, histology, and imatinib therapy. GISTs were common in men. Age ranged to symptoms were nonspecific. All cases were initially considered to have locally unresectable. Patients received preoperative imatinib. Course was unfavorable. 3 patients died of progressive disease, and one from infectious complications. Rectal GISTs may be aggressive and resistant to medical treatment. Thus only early diagnosis may offer the best chance of recovery. Rectal - gastrointestinal stromal tumor - neoadjuvant imatinib - resistance.


    Lamiae Amaadour, Soumia Berrad, Karima Oualla, Zineb Benbrahim, Samia Arifi, Nawfel Mellas. Worse Outcome with Imatinib Mesylate as Neoadjuvant Therapy in Locally Advanced Rectal Gastrointestinal Stromal Tumors: Case Series of Four Patients. The Gulf journal of oncology. 2022 May;1(39):27-30

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    PMID: 35695343

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