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. 2021 May 24;14(5):e240611. doi: 10.1136/bcr-2020-240611

Figure 1.

Figure 1

(A) Submandibular lymph node histopathology sample showing diffuse infiltration by lymphocytes and plasma cells with occasional eosinophils. (B) Positive IgG4 staining of submandibular lymph node at high magnification.