Cornea · 2013
Biopsy of an anterior episcleral nodule as an aid in managing a ciliary body melanocytic tumor.
Клинический случайСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Jakobiec Frederick A, Gragoudas Evangelos S, Colby Kathryn A
Аннотация
PURPOSE: To demonstrate the value of a diagnostic biopsy of a fixed episcleral nodule overlying a uveal mass.
METHOD: Clinicopathologic report with immunohistochemical investigations.
RESULTS: B-scan ultrasonographic biomicroscopy disclosed in a 67-year-old man an asymptomatic placoid ciliary body tumor measuring 1.28 mm in thickness underlying a poorly pigmented, fixed episcleral nodule 0.56 mm in thickness. Biopsy of the episcleral nodule displayed benign nevus-type spindle cells with small nuclei, punctate nucleoli, no mitoses, and scattered melanophages. Immunohistochemistry demonstrated that the tumor cells were Ki67 negative (proliferation index, 0) and MART-1, HMB-45, and microphthalmia-associated transcription factor positive, all melanocytic markers. The melanophages but not the tumor cells were CD68 positive, a histiocytic marker.
CONCLUSIONS: The results from biopsying an episcleral nodule can help to select among therapeutic options in managing an associated ciliary body tumor. A 1-year follow-up study and 3 sequential ultrasonographic studies in the current patient have failed to document the growth of the intraocular tumor, further confirming that it is a nevus. The excised epibulbar tumor has not recurred.
METHOD: Clinicopathologic report with immunohistochemical investigations.
RESULTS: B-scan ultrasonographic biomicroscopy disclosed in a 67-year-old man an asymptomatic placoid ciliary body tumor measuring 1.28 mm in thickness underlying a poorly pigmented, fixed episcleral nodule 0.56 mm in thickness. Biopsy of the episcleral nodule displayed benign nevus-type spindle cells with small nuclei, punctate nucleoli, no mitoses, and scattered melanophages. Immunohistochemistry demonstrated that the tumor cells were Ki67 negative (proliferation index, 0) and MART-1, HMB-45, and microphthalmia-associated transcription factor positive, all melanocytic markers. The melanophages but not the tumor cells were CD68 positive, a histiocytic marker.
CONCLUSIONS: The results from biopsying an episcleral nodule can help to select among therapeutic options in managing an associated ciliary body tumor. A 1-year follow-up study and 3 sequential ultrasonographic studies in the current patient have failed to document the growth of the intraocular tumor, further confirming that it is a nevus. The excised epibulbar tumor has not recurred.