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DCIS: Van Nuys B-R Grouping system for Grade


This is a two-parameter system of Bloom-Richardson nuclear grade and necrosis:

intraductal carcinoma (DCIS) of the breast

 non-high nuclear grade (NHNG) high nuclear grade (HNG)
with or without necrosis

group 3
 NHNG without (absent to slight) necrosis
group 1
 NHNG with (affecting 30% or more) necrosis
group 2

Reference: Fisher, et. al., Cancer, 86 (3):429-438. 1 August 1999.


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(posted 18 Dec. 2000)