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Article
August 1940

BENIGN MELANOMA OF THE CILIARY BODY

Arch Ophthalmol. 1940;24(2):347-351. doi:10.1001/archopht.1940.00870020139013
Abstract

In none of the 9 reported cases of benign melanoma of the ciliary body found in the literature was the growth suspected before its accidental finding on section. There was justification for using the term melanoma for the growth in 4 of the cases,1 but in the other 5 the tissue showed either a diffuse arrangement of the pigment-bearing cells or mere sheaths of a pigment layer. In these 4 cases the melanoma occurred in the pars plana of the ciliary body, which point is of interest in that it allows for conjecture as to the time of origin.

Embryologically, even by the fifth month the pars plana is hardly visible. By the seventh month the ora serrata lies on a level with the middle of the ciliary muscle ; by the eighth month it lies adjacent to, and at birth it is behind, the ciliary body. If one were

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