IMRT for Orbital Maltoma: A Case Report And Review Of The Literature

Orbital lymphoma is rare and accounts for less than 1% of non-Hodgkins lymphomas (NHLs), and marginal zone Bcell lymphoma of the mucosa-associated lymphoid tissue (MALT) type ise the most common histological type involving the orbit. MALT lymphomas are indolent, and usually well response to local radiotherapy (RT). Results from RT series have demostrated excellent and durable local control and survival rates in patients with localized orbital MALT lymphoma. However, due to the rarity of the disease, data about optimal radiation dose is not known and in reports with a substantial number of treated patients, doses ranges were between 20 and 57 Gy. The optimal radiation dose for treating this tumor is controversial. This case is presented because of rare incidence of orbital maltoma and to evaluate the effectiveness of RT in our Radiation Oncology department.