Percutaneous hepatic perfusion Percutaneous hepatic perfusion Percutaneous hepatic perfusion (PHP) is a regionalized, minimally-invasive approach to cancer treatment currently undergoing Phase II and Phase III clinical testing. PHP treats a variety of hepatic tumors by isolating the liver and exposing the organ to high-dose chemotherapy. As demonstrated in clinical trials, patients treated by PHP can tolerate much higher doses of chemotherapeutic agents than those receiving traditional systemic chemotherapy without increased toxicities. Using a system of catheters and filters, PHP isolates the liver from the circulatory system and infuses a chemotherapeutic agent directly to the liver via the hepatic artery. The venous effluent from
Collateral adjective and Wagnalls" dictionaries, but as they are currently out of print, the term has become rare. A synonym sometimes seen in linguistics is "suppletive (denominal) adjective," though this is a liberal and arguably incorrect use of the word 'suppletive'. Collateral adjective A collateral adjective is an adjective that is identified with a particular noun in meaning, but that is not derived from that noun. For example, the word "bovine" is considered the adjectival equivalent of the noun "cow", but it is derived from a different word, which happens to be the Latin word for "cow". Similarly, "lunar" serves as an