Bicycle Valve Stem Types. There are three types of bicycle valve stems in use: Schrader, Presta and Woods/Dunlop. The Woods or Dunlop valve stem style is much more rare than the other two. Any wheel rim that fits a Schrader valve can also fit a Woods or Presta valve.
Papilloma and Papillomatosis. A papilloma is a benign growth found in breast ducts, which has âfinger-likeâ fronds, and often completely blocks the duct. Papillomas are composed of âmammary epitheliumâ which are the cells that comprise the duct-wall linings of the breast.
HPV stands for human papillomavirus (pronounced pap ah LO mah), but there are actually more than 100 related viruses in this group. Each HPV virus is given a number or type. The term papilloma refers to a kind of wart that results from some HPV types. HPV lives in the body's epithelial cells.ach HPV virus is given a number or type. The term papilloma refers to a kind of wart that results from some HPV types. HPV lives in the body's epithelial cells.