Lobular carcinoma in situ.

The diagnosis of lobular carcinoma in situ (LCIS) provokes considerable anxiety in patients owing to misconceptions about this diagnosis. Initially LCIS was considered a premalignant lesion, but it is now a marker of increased risk. The number of women diagnosed with LCIS has increased in recent years most likely owing to more rigorous breast cancer screening. Implications of this diagnosis and management options are discussed in this review.