LRIG1 and neoplasm: LRIG1 staining was negative in 1 (1%) tumor, and the staining intensity was weak in 4 (4%), intermediate in 75 (78%), and strong in 16 (17%); 2 (2%) had 26–50% positive cells, 5 (5%) had 51–75% positive cells, and 86 (92%) had 76–100% positive cells.