“…After more than six months of radiotherapy the endoscopy could not detect metastatic lesions in the esophagus, while the lesion in the liver was stable. It is presumed that tumor invasion of portal veins caused tumor infested thrombi which are disseminated throughout GI system [12,13]. Patients receiving immunosuppressive therapy are supposed to be more prone to develop metastases of earlier diagnosed malignant diseases.…”