Pinguecula
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| Pinguecula Classification and external resources | |
| ICD-9 | 372.51 |
|---|---|
| DiseasesDB | 10046 |
| MedlinePlus | 001025 |
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Overview
A pinguecula is a type of conjunctival degeneration in the eye. It is extremely common and is seen as a yellow-white deposit on the conjunctiva adjacent to the limbus (the junction between the cornea and sclera). It is to be distinguished from pterygium clinically, 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.
They may enlarge slowly but is a benign condition requiring no treatment. If cosmesis is a concern surgical excision is sometimes done.
A pinguecula is one of the differential diagnoses for a limbal nodule.
See also
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
