«After diagnostic studies on tissue removed during a patient's operation are completed, the formalin - fixed paraffin tissue blocks are stored for several years. (sciencedaily.com)
The scar tissue blocks the flow of blood through the liver leading to increased pressure in the blood vessels in the intestine and thus to the leakage of intestinal bacteria, which reach the liver via the blood. (sciencedaily.com)
Patients often have available tissue blocks from nephrectomy specimens, but not from metastatic sites for analysis of biomarker expression, yet metastatic specimens are typically treated with systemic therapy, after nephrectomy. (jcancer.org)