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Case Reports in Ophthalmological Medicine
Volume 2015, Article ID 420490, 4 pages
http://dx.doi.org/10.1155/2015/420490
Case Report

Surgical Excision of Orbital Progressive Granular Cell Tumour

1The Department of Maxillofacial Surgery, Ospedale dell’Angelo, Via Paccagnella 11, 30174 Venice, Italy
2The Veneto Eye Bank Foundation, Via Paccagnella 11, 30174 Venice, Italy

Received 14 March 2015; Accepted 5 May 2015

Academic Editor: Mordechai Rosner

Copyright © 2015 Demetrio Germanò et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Granular cell tumour (GCT) is mostly benign lesion first described by Abrikossoff and named after him. Most cases are reported in the head and neck area, where the tongue is the most common site. Here we review previous cases in the literature for GCT in the orbit and present a new case. A 49-year-old male presented with apparent exophthalmos. Examination of the patient revealed the presence of a mass in the bottom side of the orbit. A substantial progress was noted after two months from the initial examination using computed tomography (CT) scan. An orbital mass was extracted and histological analysis showed signs typical for GCT. Immunohistochemistry was positive for S-100; the biopsy showed no mitotic or necrotic areas. Proptosis was resolved after surgery and a six-year follow-up CT scan was performed. We conclude that rapid progress of the tumour does not necessarily suggest malignancy.