Oligodendroglioma pathophysiology: Difference between revisions
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===Pathology=== | ===Pathology=== | ||
They are generally composed of cells with small to slightly enlarged round nuclei with dark, compact nuclei and a small amount of eosinophilic cytoplasm. They are often referred to as "fried egg" cells due to their histologic appearance. They appear as a monotonous population of mildly enlarged round cells infiltrating normal brain parenchyma and producing vague nodules. Although the tumor may appear to be vaguely circumscribed, it is by definition a diffusely infiltrating tumor. | They are generally composed of cells with small to slightly enlarged round nuclei with dark, compact nuclei and a small amount of eosinophilic cytoplasm. They are often referred to as "fried egg" cells due to their histologic appearance. They appear as a monotonous population of mildly enlarged round cells infiltrating normal brain parenchyma and producing vague nodules. Although the tumor may appear to be vaguely circumscribed, it is by definition a diffusely infiltrating tumor. | ||
Classically they tend to have a vasculature of finely branching capillaries that may take on a “chicken wire” appearance . When invading grey matter structures such as cortex, the neoplastic oligodendrocytes tend to cluster around [[neurons]] exhibiting a phenomenon referred to as “perineuronal satellitosis”. Oligodendrogliomas may invade preferentially around vessels or under the [[pia mater|pial]] surface of the brain. | |||
==References== | ==References== | ||
Revision as of 19:41, 6 October 2015
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Pathophysiology
Pathogenesis
Genetics
Genes associated with the pathogenesis of oligodendroglioma include:[1][2][3]
Pathology
They are generally composed of cells with small to slightly enlarged round nuclei with dark, compact nuclei and a small amount of eosinophilic cytoplasm. They are often referred to as "fried egg" cells due to their histologic appearance. They appear as a monotonous population of mildly enlarged round cells infiltrating normal brain parenchyma and producing vague nodules. Although the tumor may appear to be vaguely circumscribed, it is by definition a diffusely infiltrating tumor.
Classically they tend to have a vasculature of finely branching capillaries that may take on a “chicken wire” appearance . When invading grey matter structures such as cortex, the neoplastic oligodendrocytes tend to cluster around neurons exhibiting a phenomenon referred to as “perineuronal satellitosis”. Oligodendrogliomas may invade preferentially around vessels or under the pial surface of the brain.
References
- ↑ Yip S, Butterfield YS, Morozova O, Chittaranjan S, Blough MD, An J; et al. (2012). "Concurrent CIC mutations, IDH mutations, and 1p/19q loss distinguish oligodendrogliomas from other cancers". J Pathol. 226 (1): 7–16. doi:10.1002/path.2995. PMC 3246739. PMID 22072542.
- ↑ Molecular genetics of oligodendroglioma. https://en.wikipedia.org/wiki/Oligodendroglioma
- ↑ Bettegowda C, Agrawal N, Jiao Y, Sausen M, Wood LD, Hruban RH; et al. (2011). "Mutations in CIC and FUBP1 contribute to human oligodendroglioma". Science. 333 (6048): 1453–5. doi:10.1126/science.1210557. PMC 3170506. PMID 21817013.