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| Lattice peripheral degeneration of the retina is a bilateral
condition which involves the retina peripherally between the areas of the
ora serrata and the equator. Examination
of the fundus reveals a circumferential area of involvement characterized
by small criss-crossing white lattice lines which represent thickened,
hyalinized blood vessels. There
may be areas of hyperpigmentation associated with the areas of lattice
degeneration(#22234). There
is often a pocket of liquified overlying vitreous with condensed vitreous
forming adhesions to the margins of the lattice degeneration which may
lead to subsequent retinal detachment.
Histopathologically, the retina shows signs of atrophy and thinning
with a small amount of gliosis superficially(#22235).
The retinal vessels are thickened and hyalinized.
The overlying vitreous shows liquefaction centrally with areas of
vitreoretinal adhesions seen at the edge of the lattice lesion.
Other views
of Lattice degeneration can be seen (#23025, #23028, #23031).
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| Gross
Photo #22234 |
Medium
Power #22235
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