Salivary Gland Pathology in IgG4-Related Disease: A Comprehensive Review

Figure 1

Positron emission tomography (PET) in an IgG4-RD patient with dacryoadenitis and sialoadenitis. PET analysis was performed during relapse of the disease before starting new therapy. In the right submandibulary region and pretracheal lymph nodes, the PET analysis shows an enlargement of the parotid gland with an increase concentration of 18-FDG and glucidic hypermetabolism.