[Diagnosis and Therapy of Benign and Malignant Tumors of the Conjunctiva].

The aim of this paper is to give an overview of different benign and malignant epibulbar tumors. Categories can be made of the age of manifestation (paediatric tumors versus tumors of adults), the originating cell types (squamous cell tumors, melanocytic tumors, lymphomas or germ cell tumors) or genesis (proliferative, infectious or degenerating tumors). Most epibulbar tumors show lesions on the conjunctiva or the cornea. These can be flesh coloured or pigmented efflorescences with leucoplakias or hyperkeratosis. Especially malignant tumors show atypical growth of blood vessels, are often prominent and can have ulcerations or bleeding. In case of tumor growth, change in pigmentations or atypical bleedings a malign tumor can be suspected. The diagnosis should be confirmed using histopathological evaluation after an incisional or excisional biopsy. Molecular pathologic techniques extend the diagnostic tools and have an implication on the therapy of metastatic tumors. Therapeutic options of the malignant tumors (apart from lymphomas) are chirurgical excision preferably with a no touch technique and afterwards an adjuvant therapy consisting of radiation or cryotherapy. A topical chemotherapy with Mitomycin C, 5-Fluorouracil or Interferon α2b can be effective to reduce persisting precancerosis and reduce recurrences. In case of a suspected malignant tumor it is advisable to refer the patient to an ophthalmo-oncologic center to plan and ensure interdisciplinary therapy.