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Figure 1a. (a) Collimated right craniocaudal mammogram obtained during a needle localization in a 52-year-old woman shows the localization needle as it extends through a cluster of pleomorphic microcalcifications (arrowhead). Histopathologic analysis yielded mixed comedo and noncomedo DCIS. (b) Collimated right craniocaudal mammogram obtained 25 months after breast-conservation therapy demonstrates new pleomorphic microcalcifications (arrowheads) in a linear distribution adjacent to the lumpectomy bed (arrow). Histopathologic analysis yielded cribriform-type DCIS with necrosis.