Figure 3
A false negative case was demonstrated. A small area of atypical cell cluster was found in the CNB specimen taken from a 58 years-old woman with right breast tumor of 1.9 cm in maximal diameter (a). Adjunctive imprint cytology revealed cancerous cells with papillary clumping (b). Invasive ductal carcinoma was clearly demonstrated in Mammotome® (c) and resected specimens (d).