The impact of IgG-4-ROD on the diagnosis of orbital tumors: A retrospective analysis

IgG4-related disease presenting with profound bilateral orbital and adnexal inflammation

Purpose

IgG4-related disease is an immune-mediated fibroinflammatory condition that can affect almost every major organ system. Orbital and adnexal involvement in IgG4-related disease though not uncommon can be varied depending on the site of the lymphoplasmacytic infiltration. This case of profound bilateral orbital inflammation is presented to demonstrate the significant clinical manifestations of IgG4-related ophthalmic disease.

Observations

A 52-year-old man with a remote and seemingly unrelated history of lymphadenopathy presented to the Oculoplastics clinic with massive bilateral upper and lower lid swelling and induration. Hematologic testing demonstrated an elevation in serum IgG4 - a non-specific finding seen in various infectious, inflammatory, and malignant processes. Imaging demonstrated diffuse enlargement of orbital structures, including the lacrimal glands and extraocular muscles, as well as inflammatory changes of the adnexal and retrobulbar soft tissue. Orbital biopsy was required to confirm the diagnosis of IgG4-related ophthalmic disease.

Conclusions and Importance

IgG4-related ophthalmic disease presents with various non-specific clinical signs and symptoms. The most common presentations include dacryoadenitis, enlarged orbital nerves, and orbital fat involvement; however, the extent of involvement both locally and systemically varies greatly. Clinical findings and imaging are helpful in narrowing the differential diagnosis; however, biopsy for histopathologic examination is essential to confirm IgG4-related disease. Physicians must maintain a high level of suspicion for the disease for proper management.

Investigation of epidemiological characteristics and development of a nomogram to predict survival in primary ocular adnexal lymphoma

BACKGROUND

Studies on the epidemiology and prognosis of primary ocular adnexal lymphoma (POAL) are scarce for its low occurrence. The goal of our research was to assess the epidemiologic characteristics, prognostic variables and survival of POAL patients.

METHODS

The Surveillance, Epidemiology and End Results (SEER) database was used to collect data on patients identified with POAL from 1975 to 2011 and the incidence rate of POAL from 1975 to 2017. To discover independent predictive markers for overall survival (OS) and disease-specific survival (DSS), multivariable Cox regression analysis was utilised. The independent prognostic factors found by multivariate Cox regression analysis were used to generate a nomogram.

RESULTS

A total of 2839 patients were diagnosed with POAL, with an average age of 64.1 years. The total incidence of POAL was 2.51/1000000 (according to the overall adjustment of the 2000 American standard) from 1975 to 2017, and the annual percentage change (APC) was 2.47 (95% confidence interval 1.64-3.32, p < 0.05), showing a sharp upward trend. After multivariate Cox regression analysis, age, gender, year of diagnosis, marital status, primary site, laterality, pathological type and treatment strategy were evaluated as independent prognostic factors of OS or DSS (p < 0.05). A nomogram was constructed to forecast the DSS of 1, 3, 5 and 10 years. The concordance index (C-index) and the calibration plots demonstrated the robustness and accuracy of the nomogram.

CONCLUSIONS

Although POAL is sporadic, the incidence has generally increased in the past 36 years. In recent years, survival rates have risen, and radiotherapy can render better OS and DSS. The nomogram specially made for POAL is robust and precise in predicting the DSS of 1, 3, 5 and 10 years.

Concomitant adult onset xanthogranuloma and IgG4-related orbital disease: a rare occurrence

Adult onset xanthogranulomatous disease is a rare orbital disease. IgG4-related disease is a systemic disease that can often manifest in the orbit. In this communication, we present the case of a patient with a xanthelasma-like lesion on the upper eyelid, and an enlarged lacrimal gland, which on biopsy was diagnosed as an orbital xanthogranuloma. Detailed serological workup showed that the patient was found to have elevated serum IgG4 levels. The orbital specimen was re-stained and found to be positive for IgG4. The patient was treated with oral steroids with partial resolution of the lesion. This is an interesting case of both histopathological adult onset xanthogranuloma (AOX) and IgG4-related orbital disease (IgG4-ROD). The early evidence suggests that the diagnosis of one of these disorders should point the physician to investigate for the presence of the other, especially if xanthogranulomatous disease is diagnosed first.

Lymphoma and inflammatory disorders presenting in the orbit- a comparison of characteristics from a 10-year series in a tertiary hospital

Background/aims: To explore differences in clinical presentations and outcomes between patients with biopsy-proven orbital lymphoma and orbital inflammatory disease.Methods: Clinical records of all patients who underwent orbital biopsy at Bristol Eye Hospital during a 10-year period were reviewed. Comparisons were made between patients diagnosed with orbital lymphoma and orbital inflammatory disease (OID).Results: 35 patients were diagnosed with orbital lymphoma, undergoing 40 biopsies over the 10-year period studied. 62 patients had OID, undergoing 66 biopsies. Sub-analysis identified six patients with sarcoidosis, four with granulomatosis polyangiitis (GPA), eight with IgG4-related orbital disease, and 44 with idiopathic orbital inflammation (IOI). Patients with sarcoidosis and IOI were statistically younger at presentation than those with lymphoma, with means of 44 and 52 years, respectively, compared with 71 years. Lid swelling/puffiness was more common in OID than lymphoma. More patients with lymphoma lost vision during follow-up than those with OID.Conclusions: Although younger age of presentation and presence of lid swelling are more likely to indicate orbital inflammation than orbital lymphoma, orbital biopsy remains the gold standard to distinguish these two entities. In the case of orbital inflammation, identification of a specific diagnosis allows appropriate ongoing referral and investigations for potential systemic involvement and helps guide immunosuppressive treatment.

Imaging of Nontraumatic Orbital and Neuro-ophthalmological Emergencies

Emergency department (ED) visits for eye and vision-related concerns are common. In most cases, accurate diagnosis is made using clinical history and physical exam findings without the need for emergent imaging. When orbital imaging is performed in the ED, it is often in patients with orbital trauma where CT is used to assess for orbital fractures and associated injuries. However, CT or MR imaging can also be critical to appropriately diagnose and manage certain ED patients with nontraumatic eye and vision-related conditions. The purpose of this article is to review the imaging findings and differential diagnoses for nontraumatic orbital and neuro-ophthalmological emergencies from a practical, clinical perspective, based on a patient's typical presenting symptoms. The more commonly imaged clinical indications will be discussed including periorbital swelling, proptosis, eye pain, diplopia, and visual disturbances. In addition, rare but easily overlooked and clinically important diagnoses for the emergency radiologist to recognize will be highlighted.

IgG4-related orbital disease

CASE REPORT

The case is presented of a 64-year-old woman with bilateral palpebral swelling and dacryoadenitis, exophthalmos, and a history of chronic rhinitis and asthma. An increase in serum IgG4 was observed, and an incisional biopsy of lacrimal glands was performed, which showed fibrosis and a lymphoplasmacytic infiltrate with IgG4 producing cells.

DISCUSSION

Orbital involvement in IgG4-related disease is frequent. Bilateral dacryoadenitis is the most common manifestation. Histopathology is essential for the diagnosis and to exclude malignancy.