Pterygium

Pterygium refers to any winglike triangular membrane occurring in the neck, eyes, knees, elbows, ankles or digits.

In the eye, a pinguecula is called a pterygium if it invades the cornea.

The term comes from the Greek word pterygion meaning "wing".

Read more about PterygiumTypes, Effects, Surgical Removal, Natural History

Other articles related to "pterygium":

Pterygium - Natural History
... A pterygium grows very slowly ... Usually it takes several years or decades to progress, but occasionally growth may be rapid in the presence of inflammation such as Blepharitis ...
Pterygium Unguis
... Pterygium unguis (also known as "Dorsal pterygium") forms as a result of scarring between the proximal nailfold and matrix, with the classic example being lichen planus, though it has been reported to occur as a ...
Popliteal Pterygium Syndrome
... Popliteal pterygium syndrome (PPS) is an inherited condition affecting the face, limbs, and genitalia ... in 1968 on the basis of the most unusual anomaly, the popliteal pterygium (a web behind the knee) ...
Pterygium (conjunctiva) - Treatment
... Today a variety of options are available for the management of pterygium, from irradiation, to conjunctival auto-grafting or amniotic membrane ... As it is a benign growth, pterygium typically does not require surgery unless it grows to such an extent that it covers the pupil, obstructing vision or presents with acute symptoms ... However, no reliable medical treatment exists to reduce or even prevent pterygium progression ...
Pterygium (conjunctiva) - Pathology
... Pterygium in the conjunctiva is characterized by elastotic degeneration of collagen (actinic elastosis) and fibrovascular proliferation ... It has an advancing portion called the head of the pterygium, which is connected to the main body of the pterygium by the neck ... the impression of a migrating limbus because the cellular origin of the pterygium is actually initiated by the limbal epithelium ...