Computed tomography of posterior uveal melanomas
J. J. Augsburger, R. G. Peyster, A. M. Markoe, E. G. Guillet, J. A. Shields and M. E. Haskin
Oncology Service, Wills Eye Hospital, Philadelphia, PA 19107.
Computed tomographic (CT) scans were obtained from 48 patients with
posterior uveal melanoma. The CT measurements of maximal and minimal basal
diameters and thickness of each tumor were compared with the assessments of
these tumor dimensions obtained by ophthalmoscopic estimation (basal
diameters only) and standardized A-scan ultrasonography (thickness only)
and with the gross pathologic measurements of these tumors. The correlation
between measurements of tumor thickness by CT scanning, standardized A-scan
ultrasonography, and gross pathologic analysis was substantially better
than that between the CT, ophthalmoscopic, and gross pathologic
measurements of tumor basal diameters. Computed tomographic scanning
appears to be a good method for determining the in vivo size of choroidal
and ciliary body melanomas.
