UPMC Content 2. Percutaneous transhepatic cholangiography, or PTC, is a way of examining the bile duct system in the liver. This procedure is done under local anesthesia by a radiologist. During the exam, a thin needle is inserted through the skin (percutaneous) and through the liver (transhepatic) into a bile duct.Then dye is injected, and the bile duct system is outlined on x-rays (cholangiography). Bile is a body fluid that helps your body digest fats.uring the exam, a thin needle is inserted through the skin (percutaneous) and through the liver (transhepatic) into a bile duct. Then dye is injected, and the bile duct system is outlined on x-rays (cholangiography).
Italian is the official language of Italy and one of the four official languages in Switzerland. Youâll find Italian speakers in Malta, Vatican State, San Marino, Croatia, Slovenia and France (especially in Corsica). Italian is also the second most spoken language in Argentina. It has however seen a decline in the African countries of Eritrea and Libya, which used to be Italian colonies.
1 German is used as a regional language in Italy, Hungary, Slovakia, Romania, Denmark, France, and Namibia. 2  German is one of the 24 official languages of the European Union. 3  It is the language with the largest number of native speakers in the European Union, and the second most spoken language in Europe after English.