By definition, organelles are the membrane-bound structures in a cell. The nucleus is an example. Other organelles are located in the cytoplasm such as mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, peroxisomes, lysosomes, vacuoles and glyoxisomes.An eukaryotic cell contains many mitochondria, occupying up to a quarter of the cytoplasmic volume.he nucleus is an example. Other organelles are located in the cytoplasm such as mitochondria, chloroplasts, endoplasmic reticulum, Golgi apparatus, peroxisomes, lysosomes, vacuoles and glyoxisomes.
Enlarged bile duct symptoms vary depending upon the cause of enlargement or dilation: Gallstones in bile duct leading to its enlargement: 1  Usually there is a long history of flatulent dyspepsia (eructation).
Several conditions of the liver or bile ducts can cause this. 1  Primary sclerosing cholangitis is a condition in which inflammation of the bile ducts (cholangitis) leads to the formation of scar tissue (sclerosis). 2  People with this condition have an increased risk of bile duct cancer. The cause of the inflammation is not usually known. 2  Many people with this disease also have inflammation of the large intestine called ulcerative colitis. 3  Bile duct stones, which are similar to, but much smaller than gallstones, can also cause inflammation that increases the risk of bile duct cancer.