Sterling silver (an alloy of 92 percent silver, blended with copper and other metals) gives a lustrous appearance to coins, jewelry, and silverware. The fact that pure silver is slightly harder than gold, but still very ductile and malleable, makes it a natural choice for dental fillings.
Ultrasound detected papillary projections in 78% of tumors. Papillary projections were disseminated in 33% of malignant, 20% of borderline, and 0% of benign tumors (p = 0.0049). The mean size of the papillary projections was 9.6, 15.7, and 35.3 mm in benign, borderline, and malignant tumors, respectively (p = 0.0007).
Papillary breast cancer is a very rare type of invasive ductal breast cancer that accounts for fewer than 1% of all breast cancers. The name comes from finger-like projections, or papules, which are seen when the cells are looked at under the microscope. Many papillary tumors are benign. These are called papillomas. Even when a biopsy is negative for cancer, the pathologist often needs to look at the whole tumor under the microscope to be sure about the diagnosis. This is why surgery to remove a papilloma is usually recommended, even if it is thought to be benign.