Histological patterns in labial salivary glands (haematoxylin and eosin staining) from patients with systemic sclerosis and sicca syndrome (xerostomia)

(A) Normal glandular structure and normal acini (white stars). (B) Lymphocytic sialadenitis with focus score >1. (C) Mild interstitial fibrosis (arrows) with normal (white stars) and/or atrophic acini (black stars), without lymphocytic sialadenitis. (D) Presence of lymphocytic sialadenitis with focus score >1 associated with interstitial fibrosis.