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Gastrointestinal Stromal tumor (GIST) (13 of 13)
Case description
Imaging studies, especially CT, play an important role not
only in the detection and the localization but also in the
evaluation of the extension and follow-up of theses tumors.
Small GISTs are intraluminal, localized, and well-defined,
whereas extensive GISTs are large and hypervascular and
may contain cystic and necrotic tumor components
combined with an intra-/extraluminal tumor growth. CT
diagnosis of malignant GISTs can be suggested in the
presence of a large, complex, gastro-intestinal mass,
without significant lymphadenopathy. It is difficult to
differentiate, using only CT imaging, the GIST from other
soft-tissue tumors. In all cases, histological diagnosis is
essential and compulsory.
only in the detection and the localization but also in the
evaluation of the extension and follow-up of theses tumors.
Small GISTs are intraluminal, localized, and well-defined,
whereas extensive GISTs are large and hypervascular and
may contain cystic and necrotic tumor components
combined with an intra-/extraluminal tumor growth. CT
diagnosis of malignant GISTs can be suggested in the
presence of a large, complex, gastro-intestinal mass,
without significant lymphadenopathy. It is difficult to
differentiate, using only CT imaging, the GIST from other
soft-tissue tumors. In all cases, histological diagnosis is
essential and compulsory.
