Subcapsular Liver Hematoma in Metastatic GIST Complicating Imatinib (Gleevec) Therapy

We report two patients with metastatic gastrointestinal stromal tumor (GIST) who had large subcapsular hepatic hematomas that developed while on imatinib mesylate (Gleevec) therapy. We describe the pertinent radiologic features of the subcapsular hematomas in these patients, and discuss possible etiologies for the bleeding in each patient.