Clinical significance of hypoechoic submandibular gland lesions in type 1 autoimmune pancreatitis

Figure 1 Ultrasonographic classification of echogenicity in submandibular glands. A: Homogenous echogenicity in submandibular glands with normal parenchyma; B: Multiple hypoechoic lesions detected only in patients with type 1 autoimmune pancreatitis.

Figure 2 Ultrasonographic findings of echogenicity in submandibular glands before and after corticosteroid administration. Ultrasonography of bilateral submandibular glands in two cases (A and B) are shown. Upper panels show submandibular glands with multiple hypoechoic lesions before corticosteroid administration and lower panels show submandibular glands with resolved hypoechoic lesions after corticosteroid administration.