Clinical Features and Treatment Outcomes of Orbital Inflammatory Disease in Singapore: A 10-Year Clinicopathologic Review.

PURPOSE: 1) To assess the clinical profile and treatment outcomes of orbital inflammatory disease in the local population, and 2) classify patients using current histopathological criteria. METHODS: Ten-year retrospective clinicopathologic review of patients diagnosed with orbital inflammatory disease who underwent tissue biopsy from January 2001 to December 2011 at a tertiary referral centre in Singapore. Data collection included patient demographics, clinical presentation, investigations, systemic disease, histopathology review, clinical classification, medical and surgical management, response to treatment and recurrence rates. RESULTS: The study comprised 70 patients. Thirty-seven (52.9%) had nonspecific inflammation distributed as follows: lacrimal (n = 23), diffuse (n = 5), anterior (n = 5), myositic (n = 4). Thirty-three (47.1%) had specific inflammation of the following subtypes: idiopathic sclerosing inflammation (n = 9), granulomatous disorders (n = 8), transitional lesions (n = 5), vasculitis (n = 4), and others (n = 7). A total of 76.8% of patients received oral prednisolone, with a median duration of three months. Response to treatment was good in 71.9% of patients. Recurrence occurred in 22 (32.8%) patients at a mean interval of 20 months after completion of treatment, and was higher in myositic and vasculitic subtypes. There was no significant correlation between duration of treatment and recurrence. CONCLUSIONS: This study has re-emphasized the importance and utility of orbital biopsy and histopathologic typing for optimal management of orbital inflammatory disease. It has also improved the knowledge of the rate and response to treatment of its various subtypes.

Neuroendocrine tumors of the orbit--clinicopathological findings in 3 more cases of this rare entity and review of the literature.

INTRODUCTION: Neuroendocrine orbital tumors are rare occurrences. They are poorly characterized histologically and a spectrum of different cell types exists. This short case series studies the various tumor morphologies as well as the patients' clinical profiles. METHODS AND MATERIALS: Patients treated and followed up at the Singapore National Eye Centre over a period of 8 years from 1(st) January 2002 to 31(st) December 2009 were identified from the orbital tumor board results. The case notes of patients with the diagnosis of neuroendocrine tumors were analysed, and a review of the literature performed. RESULTS: Three patients are described in this series. The history, clinical examination findings, imaging findings as well as tumor histology were described. The mean age was 63 years, and 2 patients were male. All presented with proptosis. Only one patient had systemic symptoms on presentation. All patients had surgical excision of the tumor and two had adjuvant radiotherapy of the orbit. Median follow-up period was 3.5 years. DISCUSSION: Patients with a biopsy-proven diagnosis of orbital neuroendocrine tumors should be monitored even when systemic examination fails to identify peripheral disease. Such examination should always include a full endoscopic gastrointestinal review.