This paper entitled "Indications and importance of port catheters in cancer patients", authored by Mia Kos, a graduate student of nursing, contains the most important general information about the central venous port catheter, indications for its placement, and its importance to cancer patients and nurses specially trained in port catheter management. Each section describes one part that comprehensively represents the port catheter. It is described from the very definition of the port catheter, the composition that makes it up, the installation procedure in an oncology patient, preparations for the installation procedure, recovery after installation, and the indications for the installation itself are explained. One of the main focuses in the paper is the importance of installing a port for the life expectancy of a patient with malignant disease, and also the importance in the approach to the treatment of such a patient. The risks that may occur when installing or using a port catheter for therapeutic purposes are also described. The paper also explains the importance of a specially trained nurse (mostly oncology nurses), and her role in a patient with an implanted port catheter. It is explained from the establishment of the venous route, the administration of drugs and other necessary fluids, the procedure of catheter care to the education of the patient about everyday life with a port catheter.