“…Interestingly, the sex ratio for IgG4-related autoimmune pancreatitis is 3:1 men to women, whereas head-and neck-related disease has roughly equal proportions between men and women. 1,3,4 A Japanese study evaluating IgG4-ROD in 65 patients found that the lacrimal gland was the most involved orbital structure (88%). Other IgG4related lesions were also found to involve the trigeminal nerve (39%), extraocular muscles (25%), Supported by the Macula Foundation Inc, New York, NY.…”