Overview. Beriberi is a disease brought on by a Vitamin B-1 (thiamine) deficiency. There are two types of the disease: wet beriberi and dry beriberi. Wet beriberi can effect heart function and, in the most extreme cases, heart failure. Genetic beriberi is a rare condition that prevents the body from absorbing Vitamin B-1. 2  Pregnant women and anyone with hyperthyroidism (over-active thyroid gland) need extra vitamin B-1.
In this article. Font Size. A. A. A. A salivary gland stone -- also called salivary duct stone -- is a calcified structure that may form inside a salivary gland or duct. It can block the flow of saliva into the mouth. The majority of stones affect the submandibular glands located at the floor of the mouth.
Bile Duct Stones. Bile duct stones are gallstones in the bile duct. They can start in the gallbladder and migrate into the bile duct or they can form in the bile duct itself. The stones can become lodged in the bile duct, causing a blockage. At the Bile Duct and Pancreatic Diseases Program, part of the University of Michiganâs Division of Gastroenterology, our multidisciplinary team provides the newest in minimally invasive treatments for bile duct stones.