Ultrasound Biomicroscopy of cystic lesions of the iris and ciliary body

Abstract

Objectives: To describe and illustrate the ultrasound biomicroscopic findings in patients with one or more cystic lesions of the iris, ciliary body, or both.Methods: Retrospective study of 263 ultrasound biomicroscopic studies performed at one institution during a 20-month period, May 1994 through December 1995. All studies were performed using the Humphrey ultrasound biomicroscope model 840.Results: Thirty-nine of the 263 evaluated patients had one or more cystic lesions. Four different types of cysts were detected. Twenty-seven patients had one or more primary neuroepithelial cysts of the iris or ciliary body. These cysts were frequently multifocal and bilateral. All contained clear fluid and had a thin but highly reflective wall. Three patients had a stratified squamous epithelial implantation cyst. These cysts were all unifocal and unilateral. The intracavitary fluid contained multiple suspended particles (presumably desquamated epithelial cells), and the walls were relatively thick. Six patients had a neuroepithelial cyst associated with a solid tumor. Each of these cysts resembled the primary neuroepithelial cysts. Three patients had focal intratumoral cavitation. The cavity in each case contained clear fluid. The surrounding tumor tissue in each case appeared homogeneous.Conclusions: Ultrasound biomicroscopy appears to be a valuable clinical tool for evaluating and differentiating cystic lesions of the iris and ciliary body.

Don’t it make my blue eyes brown: heterochromia and other abnormalities of the iris

“…Augsburger et al 201 noted, in a study by using the ultrasound biomicroscope, that in 39 patients with pigment epithelial cysts, six occurred at the margin of a ciliary body tumour. Fine and Pavlin 190 in a further ultrasound biomicroscopic study of 210 irido-ciliary cysts found that 20% were associated with a tumour.…”

Detection of pars plana rupture by ultrasound biomicroscopy after cannula dislodgement during cataract wound hydration

“…It is particularly useful in the imaging of plateau iris, 3 iris and ciliary body cysts 4 and tumors, 5 cyclodialysis clefts, 6 IOL positioning, 7 and capsular anatomy. 8 However, UBM in the vitreoretinal literature has been limited, in part because the high frequency of the UBM acoustic waves provides superior resolution of anterior structures, but the wavelengths become quickly attenuated and lose resolution beyond the pars plana.…”

Biomicroscopia ultra-sônica (UBM) no planejamento cirúrgico e acompanhamento pós-operatório de melanomas malignos de íris e corpo ciliar

“…Dos melanomas da úvea, 15% são tumores de íris e corpo ciliar (1) . Estas lesões podem ser confundidas clinicamente com cistos, corpos estranhos retidos ou mesmo sinéquias (2)(3)(4) . O diagnóstico preciso e conhecimento do tamanho da lesão são fatores decisivos na escolha terapêutica (2,5) .…”

“…Aqui também foi possível comprovar a utilidade e importância da UBM no planejamento cirúrgico destas lesões especialmente as que comprometem o corpo ciliar (Fig.1, 2, 3). Além disto, esta tecnologia permite também diferenciar lesões sóli-das e císticas (2)(3)(4) ou sólidas com cavidades císticas em seu interior (Fig.3).…”