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| Pinguecula | |
|---|---|
| Classification and external resources | |
| ICD-10 | H11.1 |
| ICD-9 | 372.51 |
| DiseasesDB | 10046 |
| MedlinePlus | 001025 |
A pinguecula is a common type of conjunctival degeneration in the eye.
Contents |
Presentation
It is seen as a yellow-[1] white deposit on the conjunctiva adjacent to the limbus (the junction between the cornea and sclera). It is to be distinguished clinically from pterygium, which is a wedge shaped area of fibrosis that appears to grow into the cornea. It is most prevalent in tropical climates and is in direct correlation with UV exposure.
Histologically it shows degeneration of the collagen fibres of the conjunctival stroma with thinning of the overlying epithelium and occasional calcification.
The plural form of pinguecula is pingueculae. Pinguecula is derived from the Latin word "pinguis" for fat or grease.[1]
Prognosis and treatment
They may enlarge slowly but is a benign condition requiring no treatment. If cosmesis is a concern surgical excision is sometimes done.
Associated conditions
A pinguecula is one of the differential diagnoses for a limbal nodule. It may have an increased prevelance in Gaucher's disease.
See also
References
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