Artificial organ a stationary power supply or other stationary resources such as filters or chemical processing units. (Periodic rapid recharging of batteries, refilling of chemicals, and/or cleaning/replacing of filters would exclude a device from being called an artificial organ.) Thus, a dialysis machine, while a very successful and critically important life support device that almost completely replaces the duties of a kidney, is not an artificial organ. Constructing and installing artificial organs, an extremely research-intensive and expensive process initially, may entail many years of ongoing maintenance services not needed by a natural organ.: The use of any artificial organ by humans is
Paraneoplastic cerebellar degeneration Paraneoplastic cerebellar degeneration Paraneoplastic cerebellar degeneration (PCD) is a paraneoplastic syndrome associated with a broad variety of tumors including lung cancer, ovarian cancer, breast cancer, Hodgkin’s lymphoma and others. PCD is a rare condition that occurs in less than 1% of cancer patients. As is the case with other paraneoplastic syndromes, PCD is believed to be due to an autoimmune reaction targeted against components of the central nervous system, mostly to Purkinje cells. It is thought to be triggered when tumor cells (in PCD, most commonly ovarian or breast cancer) ectopically express proteins normally expressed in the cerebellum. This is