Noisy equipment, excessive humidity within the home and a unit older than 10 years are among the top reasons to replace your central air conditioning, according to Energy Star, a U.S. government program promoting energy efficiency.ost central air conditioning units come with two-to five-year warranties. Extended warranties can be purchased for an additional price -- usually for several hundred dollars -- and the longer the warranty, the higher the price.
The following are prognostic factors for advanced and metastatic nonâsmall cell lung cancer: 1  number of metastatic sites People with a single metastatic site have a more favourable prognosis than people who have cancer spread to several different sites.
Metastatic lung adenocarcinomas mimic ovarian surface epithelial-stromal tumors, such as the endometrioid, serous, clear cell, and mucinous type [6]. The ovary is an uncommon location for metastasis of lung cancer, and few such cases have been reported in the literature [3, 7â9]. Young and Scully reported 7 cases of ovarian metastasis of lung cancer [10].