Dr. Donald H. Knudson MD

What is Epiglottis?Epiglottis is a elastic flap of tissue that is shaped like a thin leaf and situated at the root of the tongue. It protects the opening between the vocal cords, known as the entrance of the glottis. Epiglottis is covered with mucous membrane, which is a yellow elastic cartilage...

The Gallbladder is a small, pear-shaped organ that is located below the liver. It is found on the right side of the abdomen. Its primary function is to take and store the fluid that is released from the liver to help in digestion (bile). The surgical procedure that is used to extract a damaged...

What is the gallbladder?The gallbladder is a four-inch, pear-shaped organ situated below your liver. It acts as a storage organ for bile, which is a mixture of fats, cholesterol, and fluids. The main purpose of bile is to help in breaking down fats during digestion. The whole process allows for easy...

What is a laminectomy?You may experience back pain that affects your day-to-day activities. Your doctor may recommend that you undergo a surgical procedure called laminectomy.Laminectomy is a surgical operation, in which the lamina is removed. This helps relieve pressure that is exerted on the nerve...

Lobotomy is a neurosurgical procedure invented in 1935 by a Portuguese neurologist named Moniz. Moniz won the Nobel Prize in 1949 for his achievement. It was believed that lobotomy was successful in the treatment of various psychological diseases like depression, bipolar disorders, mania,...

An incisional hernia arises when abdominal tissue begins to poke through a soft spot in the wall of the abdomen. This type of hernia only occurs as the result of the incision made in a prior abdominal surgery. An incisional hernia may be the result of poor healing, infection, or technical problems a...