16-year-old female at 28 weeks gestation with palpable left breast lump. On physical examination, there is a pea-sized mobile mass along the medial inframammary fold. A targeted left ultrasound was performed for the palpable area of concern. A 0.4 x 0.3 x 0.3 cm cyst is present subjacent to the area of palpable concern at the 8:00 position, 10 cm from the nipple. This cyst has a tail extending to the cutaneous surface, compatible with a sebaceous cyst.
Sebaceous cyst corresponding to the area of palpable concern in the left breast. No sonographic evidence for malignancy. The patient was instructed to return to her referring physician for clinical management.BIRADS: 2 - Benign finding.RECOMMENDATION: C - Clinical Correlation Needed.