Pterygium: Difference between revisions
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{{ Infobox diagnosis | |||
| Name = {{PAGENAME}} | |||
| Image = Pterygium_-_high_mag.jpg | |||
| Width = | |||
| Caption = Pterygium. [[H&E stain]]. | |||
| Synonyms = surfer eye | |||
| Micro = hyaline material beneath epithelium, elastic fibres beneath the hyaline material, +/-inflammation, [[solar elastosis]], dilated [[blood vessels]] | |||
| Subtypes = | |||
| LMDDx = squamous dysplasia, [[squamous cell carcinoma]] | |||
| Stains = | |||
| IHC = | |||
| EM = | |||
| Molecular = | |||
| IF = | |||
| Gross = | |||
| Grossing = | |||
| Site = [[eye]] - more specifically ''conjunctiva'' | |||
| Assdx = | |||
| Syndromes = | |||
| Clinicalhx = sun exposure | |||
| Signs = | |||
| Symptoms = | |||
| Prevalence = common | |||
| Bloodwork = | |||
| Rads = | |||
| Endoscopy = | |||
| Prognosis = benign | |||
| Other = [[pinguecula]] considered early pterygium by some | |||
| ClinDDx = | |||
| Tx = excision | |||
}} | |||
'''Pterygium''' is a common benign pathology of the [[eye]]. It is also known as '''surfer eye'''. | '''Pterygium''' is a common benign pathology of the [[eye]]. It is also known as '''surfer eye'''. | ||
It is similar to [[pinguecula]] and Raizada ''et al.''<ref name=pmid1031388>{{Cite journal | last1 = Raizada | first1 = IN. | last2 = Bhatnagar | first2 = NK. | title = Pinguecula and pterygium (a histopathological study). | journal = Indian J Ophthalmol | volume = 24 | issue = 2 | pages = 16-8 | month = Jul | year = 1976 | doi = | PMID = 1031388 | URL = http://www.ijo.in/text.asp?2007/55/1/83/29517 }}</ref> suggest ''pinguecula'' is an early pterygium; however, this is disputed. | |||
==General== | ==General== | ||
*Pronounced: "tuh-rij-ee-uhm".<ref>URL: [http://dictionary.reference.com/browse/pterygium http://dictionary.reference.com/browse/pterygium]. Accessed on: 20 October 2011</ref> | *Pronounced: "tuh-rij-ee-uhm".<ref>URL: [http://dictionary.reference.com/browse/pterygium http://dictionary.reference.com/browse/pterygium]. Accessed on: 20 October 2011</ref> | ||
*Conjunctiva lesion that covers part of the sclera. | *Conjunctiva lesion that covers part of the sclera. | ||
**Sclera = white part of the eye.<ref>URL: [http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002006/ http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002006/]. Accessed on: 20 October 2011.</ref> | **[[Sclera]] = white part of the eye.<ref>URL: [http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002006/ http://www.ncbi.nlm.nih.gov/pubmedhealth/PMH0002006/]. Accessed on: 20 October 2011.</ref> | ||
*Benign. | *Benign. | ||
*Due to ultraviolet light exposure, i.e. sunlight.<ref name=pmid2695353>{{Cite journal | last1 = Hill | first1 = JC. | last2 = Maske | first2 = R. | title = Pathogenesis of pterygium. | journal = Eye (Lond) | volume = 3 ( Pt 2) | issue = | pages = 218-26 | month = | year = 1989 | doi = 10.1038/eye.1989.31 | PMID = 2695353 | URL = http://www.nature.com/eye/journal/v3/n2/abs/eye198931a.html }}</ref> | *Due to ultraviolet light exposure, i.e. sunlight.<ref name=pmid2695353>{{Cite journal | last1 = Hill | first1 = JC. | last2 = Maske | first2 = R. | title = Pathogenesis of pterygium. | journal = Eye (Lond) | volume = 3 ( Pt 2) | issue = | pages = 218-26 | month = | year = 1989 | doi = 10.1038/eye.1989.31 | PMID = 2695353 | URL = http://www.nature.com/eye/journal/v3/n2/abs/eye198931a.html }}</ref> | ||
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*Medial aspect of eye - covers sclera (white part) and part of the iris (coloured part). | *Medial aspect of eye - covers sclera (white part) and part of the iris (coloured part). | ||
Image | ===Image=== | ||
<gallery> | |||
Image:Pterygium (from Michigan Uni site, CC-BY).jpg |Pterygium. (WC/Jonathan Trobe) | |||
</gallery> | |||
==Microscopic== | ==Microscopic== | ||
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**Dense gray/light brown acellular material. | **Dense gray/light brown acellular material. | ||
*Dilated vessels.<ref name=uic_edu>URL: [http://www.uic.edu/depts/mcpt/eyepath/specco4.htm http://www.uic.edu/depts/mcpt/eyepath/specco4.htm]. Accessed on: 25 October 2011.</ref> | *Dilated vessels.<ref name=uic_edu>URL: [http://www.uic.edu/depts/mcpt/eyepath/specco4.htm http://www.uic.edu/depts/mcpt/eyepath/specco4.htm]. Accessed on: 25 October 2011.</ref> | ||
Note: | |||
*Goblet cells within the squamous epithelium are expected; normal [[conjunctiva]] has goblet cells. | |||
DDx: | DDx: | ||
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Image:Pterygium_-_high_mag.jpg | Pterygium - high mag. (WC/Nephron) | Image:Pterygium_-_high_mag.jpg | Pterygium - high mag. (WC/Nephron) | ||
</gallery> | </gallery> | ||
==Sign out== | ==Sign out== | ||
===Right eye=== | ===Right eye=== | ||