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Bone Spicules

Definition
Pigment hyperplasia in the mid-peripheral retina secondary
to migration of RPE cells in overlying retina

Causes
Retinitis Pigmentosa (#1 cause)
Syphilis
Rubella
Severe Uveitis
Choroidal vascular occlusion
Chloroquine/Thioridazine toxicity
Chorioedema

Workup
Visual Field/ERG (RP)
RPR/FTA-ABS (Syphillis)
Slit Lamp Exam (Uveitis)
IgG/IgM HI Rubella test (Rubella)