Uveal melanoma

Abstract

The paper present a clinic and histological study, including all cases of uveal malignant tumours, hospitalized in Ophthalmological Clinic of Craiova in the last 15 years. The follow-up period of cases were 4 years. The diagnosis was established by clinic and paraclinic examination (imaging methods-- MRI, CT, Echo) and histologic examination. The histologic examination has been done for all cases. There were investigated several parametres: tumour cytology, the level of pigmentation, intravascular embolus, sclera infiltration, vascular invasion, vascular pattern, tumoral necrosis, mitotic activity. The histologic aspects of tumoral progression were: the high level mitotic activity, high surface area of intratumoral necrosis, the infiltrative process to the vessels, sclera, and ciliary body. The arcuat and network vascular patterns were involved in the systemic metastasis and local invasion. The most predominant type of cellularity related with a severe evolution of cases were the epithelioid cells and the mixed type cells.