Pterygium inversum unguis
Pterygium inversum unguis
Pterygium inversum unguis (pronunciation: ter-ij-ee-um in-ver-sum un-gwis) is a rare medical condition that affects the nail of a person. It is characterized by the abnormal growth of the hyponychium, which is the epithelium located beneath the nail plate at the junction of the free edge and the skin of the fingertip.
Etymology
The term 'Pterygium inversum unguis' is derived from the Greek word 'pterygion' meaning 'little wing', 'inversum' which is Latin for 'inverted', and 'unguis', also Latin, meaning 'nail'.
Symptoms
The main symptom of Pterygium inversum unguis is the extension of the hyponychium which may appear as a translucent, keratinous, and adherent layer on the underside of the nail. It may be associated with some discomfort, especially if the nail is traumatized.
Causes
The exact cause of Pterygium inversum unguis is unknown. However, it is often associated with certain systemic diseases and conditions such as psoriasis, lichen planus, and Darier's disease. It may also be a congenital condition or result from a traumatic injury to the nail.
Treatment
Treatment for Pterygium inversum unguis primarily involves managing the underlying condition, if any. In some cases, surgical intervention may be necessary to remove the excess tissue. Regular nail care and avoiding trauma to the nail can also help manage the condition.
Related Terms
External links
- Medical encyclopedia article on Pterygium inversum unguis
- Wikipedia's article - Pterygium inversum unguis
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