Anterior orbital leiomyoma originating from the supraorbital neurovascular bundle

PURPOSE: To present a young female patient with left anterior orbital leiomyoma that originates from the supraorbital neurovascular bundle. CASE PRESENTATION: A 41-year-old female patient was admitted to our clinic with a complaint of swelling of the left upper eyelid. Based on the ophthalmological and imaging assessments, the excisional biopsy with the preliminary diagnosis of dermoid cyst was planned. The histopathological and immunohistochemical examinations of excised sample revealed surprisingly that the tumour was a leiomyoma. No recurrence was detected in the patient’s follow-up. CONCLUSION: Although it is rare, orbital leiomyoma should be considered in the differential diagnosis of patients with orbital tumour.