Table 8.
Subsequent, interval, repeat diagnostic breast biopsy procedures that were later done in a delayed fashion from the same anatomical site of the affected breast after having a benign finding on the original ultrasound-guided diagnostic breast biopsy procedure.
| 8-gauge | 14-gauge | All cases | P-value | |
|---|---|---|---|---|
| All cases in which the patient underwent an interval, repeat diagnostic breast biopsy procedure done at a delayed time after having a benign finding on the original ultrasound-guided diagnostic breast biopsy | 9 (1.2%) | 15 (2.1%) | 24 (1.7%) | 0.211 |
| Median time to interval, repeat diagnostic breast biopsy procedure (months, range) | 12.4 (4.7-45.4) | 9.8 (2.8-34.1) | 12.0 (2.8-45.4) | 0.373 |
| Reason for interval, repeat diagnostic breast biopsy procedure | --------- | |||
| Residual BIRADS 4 ultrasound lesion | 6 (66.7%) | 7 (46.7%) | 12 (50.0%) | --------- |
| Residual BIRADS 4 MRI lesion | 1 (11.1%) | 0 (0%) | 1 (4.2%) | --------- |
| Developed new BIRADS 4 mammographic lesion | 2 (22.2%) | 0 (0%) | 2 (8.3%) | --------- |
| Patient's request | 0 (0%) | 8 (53.3%) | 8 (33.3%) | --------- |
| Type of interval, repeat diagnostic breast biopsy procedure | --------- | |||
| Surgical excision | 3 (33.3%) | 7 (46.7%) | 10 (41.7%) | --------- |
| Ultrasound-guided 8-gauge vacuum-assisted biopsy | 5 (55.5%) | 7 (46.7%) | 12 (50.0%) | --------- |
| Ultrasound-guided 14-gauge core biopsy | 0 (0%) | 1 (6.7%) | 1 (4.2%) | --------- |
| MRI guided 10-gauge biopsy | 1 (11.1%) | 0 (0%) | 1 (4.2%) | --------- |
| Frequency in which a benign breast finding from the original ultrasound-guided diagnostic breast biopsy was determined to represent an invasive carcinoma at the time of the interval, repeat diagnostic breast biopsy procedure done at a delayed time | 0/9 (0%) | 1/15 (6.7%) | 1/24 (4.2%) | 1.000 |