Carcinoma of the anal area represents less than 5 percent of all large bowel malignancy. At the level of the dentate line and extending approximately 1 cm proximal is a transitional zone of epithelium connecting the squamous cell epithelium of the anoderm with the columnar epithelium of the rectum. Ihis transition zone includes columnar, cuboidal, transitional, and squamous epithelial cells that represent the source for a variety of malignancies that arise in the anal canal ( Ia.b]§,Z.8.:4). For the purpose of grading malignancies, the United Nations World Health Organization has divided the anal canal into two regions: (1) malignancies of the portion proximal to the dentate line and including the transitional zone are referred to as anal canal neoplasms and (2) tumors arising in the anoderm distal to the dentate line are referred to as anal margin neoplasms.
Ana^-cuiil ECiipJiuni jptgLjiut Iv dciuk lv| Aftpesninpru gj Lhq rrvhiin
Adwrftfirteiiii -jf + uu¡
\liKorpdermoid LKtirwn» Ti-L-iMiunil fb*£ufcnic i hkUlotJj ¿u.iimik i-iuin\?ul dill LirinW-tti ^CÉM- mil <MUl itjdi jTuri nvrlan-r-mj
AM1 mugih rtocplotni ftliidwdcfUK MK) HOwtj"! Jj^IR
^funKiH pell amiHU nf irjl nuiim I L-ji-TuniirjJY ftyct'i ÜÍ-J.M.U fatll «II («tl'MM-1-F tjllTfl K'hUTr ni[l>ttp.!tHlhXl'li
Was this article helpful?
Awesome Ways To Get Over Your Mentality That Keeps you Overweight! This Book Is One Of The Most Valuable Resources In The World When It Comes To Results In Your Slim-down and Health Efforts! Day in day out we keep ourselves absorbed with those matters that matter the most to us. A lot of times, it might be just to survive and bring in some money. In doing so we at times disregard or forget about the extra matters that are essential to balance our lives. They’re even more essential to supply real meaning to our world. You have to pay attention to your wellness.