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Fig. 2 | Arthritis Research & Therapy

Fig. 2

From: Effectiveness of imaging modalities for screening IgG4-related dacryoadenitis and sialadenitis (Mikulicz’s disease) and for differentiating it from Sjögren’s syndrome (SS), with an emphasis on sonography

Fig. 2

Characteristic findings on FDG-PET/CT, CT and MRI. a-d FDG-PET/CT, e-h CT and i-m MRI. a, e, i Parotid glands of a patient with IgG4-DS. b, f, j Submandibular glands of a patient with IgG4-DS. c, g, k, l Parotid glands of a patient with SS. d, h, m Submandibular glands of a patient with SS. FDG-PET/CT shows abnormal 18F-FDG accumulation in the parotid (a, c) and submandibular glands (b). A patient with IgG4-DS showing parotid (e, i) and submandibular gland swelling (f, j), superficial enhancement of the parotid glands (e), and a septum-like structure in the submandibular glands (f). A patient with SS showing atrophic parotid (g) and submandibular glands (h, m), and a salt-and-pepper appearance (g, k, l). It also shows dot-like calcifications on CT (g), and small multiple cystic areas on T2-weighted images (l). FDG-PET/CT 2-[18F]-fluoro-2-deoxy-D-glucose positron emission tomography/computed tomography, CT computed tomography, IgG4-DS IgG4-related dacryoadenitis and sialadenitis, MRI magnetic resonance imaging, SS Sjögren’s syndrome

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Arthritis Research & Therapy

ISSN: 1478-6362

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