Infiltrating orbital astrocytic proliferation associated with congenitally malformed eyes.

This report describes the clinical and pathologic findings in two adults with orbital infiltration by astrocytic cells associated with congenitally malformed eyes. Both cases had enlarging orbital masses and underwent complete resection. Histopathology revealed proliferation of astrocytes (fibrillary acidic protein-positive) that invaded the orbital tissues. To the best of our knowledge, there are no similar cases in the literature.