“…15 Most OCs develops in the parotid glands, 1,2,16 and OC arising in the submandibular glands is exceedingly rare—we could find fewer than 15 cases in the literature, and most of them were single case reports. 2,4-7 Excluding 3 cases described in non–English-language reports (1 Japanese and 2 German) and a few cases in which we could not confirm the diagnosis as OC, or which we considered duplicate publication, the summary of 10 cases including our case is shown in Table 2. From this, the following characteristics were identified: male-to-female ratio, 2.3 (7:3); mean age, 67.5 (range 53-82); tumor size, 1.7-7.0 cm (n = 8); lymph node metastasis at the time of diagnosis, 5/10 (3 cases were clinically negative); and follow-up, 6 months to 9 years (n = 8).…”