[Retinal tumors of the adult--two case reports]

Most frequently, retinal tumors that affect adults are rare, benign lesions that arise from vascular structures (hemangioma), neuroglial structures (astrocytoma, massive gliosis of the retina) or neuroepithelial cells (occasional forms of retinoblastoma that spontaneously stop growing and do not achieve or lose their malignant character). Retinal metastasis might be encountered but the settling of cancer cells at this level is very rare. Retinal tumors have frequently systemic associations and in this case they are included in the phacomatoses syndrome; nevertheless, they can also occur as a nonsyndromic pathological disorder. Even if the incidence is rare and the variety limited, issuing a diagnosis proves difficult because retinal tumors look like other lesions or due to a low visibility of the ocular fundus. Hereunder we shall present you two cases of retinal tumors that were difficulty diagnosed and treated by surgical excision of the tumor.