AIM:To summarize the pathology, B-scan ultrasound and CDI manifest of orbital neurinoma. Try to analyze the connection between the different amounts of cystic degeneration and vascular distribution and the findings in ultrasound and CDI imaging.

METHODS: A retrospective analysis was performed on 44 cases with orbital neurinoma treated during January 2001 to December 2008, including 44 cases of pathological sections and B-scan ultrasound pictures, and 42 cases of CDI pictures. The connection between them were compared.

RESULTS: The incidence of cystic changes in Antoni type A was the highest, mixed type followed, Antoni type B at least, which was statistical significance(P<0.05). Antoni type B had more blood vessel structures, mixed type followed, Antoni type A at least, which was not statistical significance. The coincidence rate between the cystic changes and nonuniform echo in ultrosonography was 50.0%. On the other hand, between the non-cystic changes and uniform echo, the coincidence rate was 69.3%. On CDI, 83.0% of Antoni type B and 59.2% of Antoni type A can be detected blood current with no statistical significance. CDI showed compliance rate of 100% between blood flow and pathology, with statistical significance.

CONCLUSION: Mixed type is the most common type in orbital neurinoma. Cystic changes are more common in Antoni type A, while blood vessel structures are more common in Antoni type B. Ultrasonography can demonstrate the site, configuration and characteristics of the tumors, which is coincidence with the cystic changes and the blood vessels.