Hebra, Hans von (1870), Ueber ein eigenthümliches Neugebilde an der Nase; Rhinosclerom; nebst histologischem Befunde vom Dr. M. Kohn. Journal: Wiener Medizinische Wochenschrift; vol. 20, pp. 1–5. Morton, Leslie T. (1970), A medical bibliography (Garrison and Morton). Philadelphia & Toronto: J. B. Lippincott Company, p. 388. Palmer, P. E. S. & Reeder, M. M. (2000), The imaging of tropical diseases. Heidelberg: Springer Verlach; vols. 1 & 2 (ISBN 3-540-66219-7). External links

DiBartolomeo, Scleroma of the nose and pharynx.
Hypervitaminosis is a condition of abnormally high storage levels of vitamins, which can lead to various symptoms as over excitement, irritability, or even toxicity. Specific medical names of the different conditions are derived from the given vitamin involved: an excess of vitamin A, for example, is called hypervitaminosis A. Hypervitaminoses are primarily caused by fat-soluble vitamins  (D and A), as these are stored by the body for longer than the water-soluble vitamins.Generally, toxic levels of vitamins stem from high supplement intake and not always from natural sources but rather the mix of natural, derived vitamins and enhancers (vitamin boosters). Toxicities of fat-soluble vitamins can also be caused by a large intake of highly fortified foods, but natural food in modest levels rarely deliver extreme or dangerous levels of fat-soluble vitamins. The Dietary Reference Intake recommendations from the United States Department of Agriculture define a "tolerable upper intake level" for most vitamins. For those who are entirely healthy and do not experience long periods of avitaminosis, vitamin overdose can be avoided by not taking more than the normal or recommended amount of multi-vitamin supplement shown on the bottle and not ingesting multiple vitamin-containing supplements concurrently. Signs and symptoms
A few described symptoms:

Causes
With few exceptions, like some vitamins from B-complex, hypervitaminosis usually occurs with the fat-soluble vitamins A and D, which are stored, respectively, in the liver and fatty tissues of the body. These vitamins build up and remain for a longer time in the body than water-soluble vitamins.