Marc-Andre Rheaume, MD | University of Montreal Guy Allaire, MD, FRCPC | University of Montreal Akram Rahal, MD, FRCSC | University of Montreal Vijayabalan Balasingam, MD, FRCSC, PhD | University of Montreal Patrick R. Boulos, MD, FRCSC | University of Montreal
On initial examination, best corrected visual acuity was 20/40 in the right eye and 20/30 in the left eye. Pinhole testing improved visual acuity to 20/25 in both eyes. Color vision tested with the HRR plates was normal bilaterally. A painful and fixed mass in the left superotemporal orbit was identified on palpation and skin changes were seen overlying it. It was also found to displace the globe inferonasally (Figure 1a). Hertel exophtalmolometry measurements were 15 mm in the right eye and 21 mm in the left eye (Figure 1b). Extraocular movements were full on the right side with a slight limitation of abduction in the left eye. Pupils were normally reactive with no afferent papillary defect. Slit-lamp examination of the anterior and posterior segments was entirely normal. No choroidal folds were seen in the left eye. Evaluation of the fifth cranial nerve revealed a diminished sensitivity in the left ophthalmic division. The maxillary division was normal bilaterally. No abnormal cervical lymph nodes were palpated.