Labial salivary gland biopsy in Sjögren's disease

Chisholm Mason scale

Grade

Lymphocytes per 4 sq mm of Salivary Tissue

0

Absent

1

Slight infiltrate

2

Moderate infiltrate or less than one focus

3

One focus

4

More than one focus

 

Focus = an aggregate of 50 or more lymphocytes and histiocytes

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