[Giant tumor of the orbit--a case of hidradenoma]

Orbital tumors are very differential group of lesions. The most common symptoms are ophthalmology dysfunction as: exophthalmus, eye movement dysfunction and visual loss. More often a benign lesions is found than malignant. They are originated mostly from lacrimal glands. We present a case of 62 years old man with large expansion of benign tumor of the orbit with exophthalmus, eye movement disability and complete blindness. The authors performed radical surgery with removing of the orbit content. Histopathology described a very rare tumor of the orbit-hidradenoma.