Giant Rectal Gastrointestinal Stromal Tumors: A Report of Two Cases

Giant gastrointestinal stromal tumors (GISTs) of the rectum are rare and often difficult to remove surgically. At the time metastases are found, GISTs are considered to be incurable and until recently no adequate therapy was of any value for these patients. Recently, imatinib was introduced: a signal transducing inhibitor acting specifically on the KIT-tyrosine kinase, which can be used to downsize giant GIST (neo-adjuvant) before surgery or induce stable disease in case of metastases with few minor side-effects. Two patients with giant rectal GIST are presented, one of which was treated before the imatinib era, the other when imatinib was available.

Abstract licence: CC BY-NC

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