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A Journal on Ophthalmology




Minerva Oftalmologica 2007 September;49(3):131-5

language: English

Fibrous solitary tumor of the orbit. A case report

Fontana S. 1, Ghilardi R. 1, Amaddeo P. 1, Barbaglio A. 1, Faldi F.1, Pericotti S. 2

1 Unit of Maxillofacial Surgery Ospedali Riuniti, Bergamo, Italy
2 Unit of Anatomical Pathology Ospedali Riuniti di Bergamo, Italy


The fibrous solitary tumor is a rare tumor arising from the mesenchymal tissue, most frequently involving the pleura, but it can involve every organ with a mesothelial framework such as, for example, the pericardium and the mediastinum. In this paper we present an orbital localization; the orbit is a quite rare localization and only 50 cases have been reported in the literature. A 59 year-old man, with mental deficiency, presenting left orbital dystopia with hyperemy, and at objective examination, reporting diplopia was observed. Radiological examinations showed an extraconical orbital mass pushing the medial rectum muscle to the external orbital area. In our Division we proceeded with the surgical removal of the mass, that appeared gray-green in colour with a fibrotic pseudocapsulated frame. The histological examination was for solitary fibrous tumor; for a more certain diagnosis the pathology staff used immunohistochemical examinations such as, for example, cd 34 positivity. The recurrence of this tumor is relatively infrequent due to the lack of a real frame, for this reason removal has to be the most radical possible; in the Literaure only one case of malignant degeneration is reported. To prevent either recurrences or malignant degeneration, a diligent and scrupulous follow-up has to be carried out.

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