Invasive lobular carcinomas are challenging lesions to detect. In large series of cancers, these are the lesions we are prone to miss as breast imagers. The reason is these lesions do not elicit the scirrhous response we usually expect to see with IDC. The lesions usually present without the surrounding spiculated margins we traditionally associate with an IDC. These lesions are subtle and are usually found as areas of parenchymal asymmetry. Comparison with previous imaging and a high index of suspicion will enable you to spot these lesions more frequently.