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Figure 4 | BMC Medicine

Figure 4

From: Novel aspects of Sjögren’s syndrome in 2012

Figure 4

Microscopy of a minor salivary gland in Sjögren’s syndrome (SS): ‘periductal lymphoid focus’. The finding of at least 1 focus (periductal aggregate of at least 50 lymphocytes, mostly CD4+) in 4 mm2 of tissue is diagnostic for SS. The ‘score’ is the number of foci in 4 mm2 of tissue.

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