at least one fluid composition and or tissue fluid of interest fig3 also illustrates the proximal end of tubing 122 connections to a vacuum source 21 for instances a syringe or a pump not represented well known to one of ordinary skill in the field the vacuum source provides means to aspirate at a controlled rate and pressure at least one fluid composition and or tissue fluid of interest it is contemplated that tubing 121 122 and openings ports 160 170 can be used interchangeably as injection and or aspiration members if they are connected to the corresponding vacuum and pressurized sources that can be used sequentially or simultaneously through a manifold 50 see fig3 for instances a 4 way manifold not detailed here could allow for a multiplicity of operations including but not limited to aspirating fluids and waste injecting separately or in conjunction composition and or other desirable agents such as but not limited to contrast medium hot or cold fluids sealing substances moreover a single tubing can be used as an injection and aspiration means fig2 illustrates an alternative embodiment of the invention in addition to tumors the multilumen catheter can also be used to treat areas of the body such as a vascular or organ lumen.