The tumor burden, poor nutrition, immune incompetence, and other poorly understood factors combine to cause extreme weakness and lassitude. That form of malignant, neoplastic growth that starts in epithelial or lining cells of the body. A specially designed needle with a collecting channel and a cutting device is passed into the tissue of concern and a sample is cut out. The sample is small but the tissue architecture is preserved which may be helpful to the interpreting pathologist. C yst a fluid filled lump or mass C ytology evaluation of individual cells under the microscope to ascertain whether they are malignant D D ermis the deeper portion or layer of the skin Direct extension Direct Extension is a term with which surgeons, in particular, are concerned.
Cancerous tumors grow in the region where they start and then invade the surrounding tissue.
When they invade and cross boundaries from one type of tissue to another, the cancer is now directly extending into the new tissue. It has invaded something by direct extension . The spread is distant from the site of origin anatomically. A biopsy in which the entire suspect tissue mass is removed for diagnostic purposes. Commonly done when the excision is minimally invasive to the patient.