Since suspicious groups of microcalcifications can appear even in the absence of DCIS , a biopsy may be necessary for diagnosis .
DCIS can be detected on mammograms by examining tiny specks of calcium known as microcalcifications .
Since suspicious groups of microcalcifications can appear even in the absence of DCIS , a DCIS may be necessary for diagnosis .
DCIS can be detected on mammograms by examining tiny specks of calcium known as microcalcifications .