Vitamin A is absorbed along with fat in the diet. Take it with food. Studies often use high doses of vitamin A. However, such high doses can be toxic. A doctor should monitor any high-dose therapy (any dose approaching the level of 10,000 IU for an adult, or above the recommended daily allowance for a child).
Paneth Cell Metaplasia Paneth cell metaplasia is a form of intestinal metaplasia where paneth cells are located outside the small bowel such as seen in colonic paneth cell metaplasia. This is usually seen in the setting of chronic inflammation associated with ulcerative colitis, Crohn's Colitis, diverticulitis, or radiation colitis.
Click to enlarge image. Tubal metaplasia is a common phenomenon in the endocervical glands where endocervical cells become cuboidal and may show cilia. Tubal metaplasia also shows some crowing of the nuclei and hyperchromasia and therefore it can be misinterpreted as endocervical dysplasia or adenocarcinoma in situ.