According to Collins, increased proliferative activity of the epithelial lining of the ciliary body gives rise to small innocent growths at times met with in the eyes of elderly persons. Their presence is discovered only on histologic examination.
In the case here reported and in one other case recorded by Coates such a growth attained sufficient size to lead to the clinical diagnosis of a tumor of the ciliary body. Collins stated: "Springing from the unpigmented layer of cells the growth itself is entirely without pigment, but carries the pigmented layers in front of it as it extends outward. Both layers become invaginated. The lumen of the space so formed communicates with the interior of the eye. If the communication becomes closed and secretions from the lining cells continue a cyst is formed." This occurred in the case reported by Coates.
The lining epithelium of the
ZENTMAYER W. A CASE OF HYPERPLASIA OF THE EPITHELIUM OF THE CILIARY PROCESSES: (CILIARY ADENOMA OF E. TREACHER COLLINS). Arch Ophthalmol. 1936;16(4):677–680. doi:10.1001/archopht.1936.00840220135014
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