The Liverpool Ocular Oncology Research Group recently published a new case report in Graefe's Archive earlier this month. For further information please click here:
Coupland SE, Dodson A, Liu H, Du MQ, Angi M, Damato BE. Intraocular collision tumour: case report and literature review. Graefes Arch Clin Exp Ophthalmol. 2013 May;251(5):1383-8.