prama hope this explains it I just copied and pasted sorry.
I have had lots of them and as a result my arms are very scarred

A peripherally inserted central catheter (PICC or PIC line) is a form of intravenous access that can be used for a prolonged period of time (e.g. for long chemotherapy regimens, extended antibiotic therapy, or total parenteral nutrition). First described in 1975,[1] it is an alternative to subclavian lines, internal jugular lines or femoral lines which have higher rates of infection. Subclavian and internal jugular line placements may result in pneumothorax (air in the pleural space of lung).

A PICC is inserted in a peripheral vein, such as the cephalic vein, basilic vein, or brachial vein and then advanced through increasingly larger veins, toward the heart until the tip rests in the distal superior vena cava or cavo-atrial junction.


Its not worth the risk of infection for me to have one in for such short bursts of treatment as I dont have any neutrophils to fight the infections off. Besides they can be uncomefortable.
I have treatmen tint he cancer clinic next to the hospital much nicer than being i main hos.