Background/aim:1397645907We aimed to analyze the value of 3 serial sections, spaced 2001397645907μm1397645907apart,1397645907for quantification of lymphocyte and plasma cell foci in1397645907minor salivary gland biopsy (MSGB).1397645907 Materials and methods:1397645907Labial MSGBs from 69 patients with Sjögren's syndrome (SS) and scleroderma were used for this study. Each sample was prepared as 3 serial sections spaced 2001397645907μm apart.1397645907Lymphocytic and plasma cell focus score (LFS, PFS) were determined for each section, and the diagnostic results were compared to those obtained from a single section. Results: For 22 of the 69 patients, all 3 sections1397645907were scored at1397645907