Collagen Type XI Alpha 1 Expression in Intraductal Papillomas Predicts Malignant Recurrence

Figure 1

Pro-COL11A1 expression in breast papillary lesions. Immunostaining for pro-COL11A1 in: (a) benign intraductal papilloma, (b) malignant relapse intraductal papilloma, (c) encapsulated papillary carcinoma. Counterstain with Hematoxilin. Lowercase letters images magnification ×200, uppercase letters images magnification ×400.