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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.

From: Ultrasound-guided diagnostic breast biopsy methodology: retrospective comparison of the 8-gauge vacuum-assisted biopsy approach versus the spring-loaded 14-gauge core biopsy approach

 

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

   

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   Residual BIRADS 4 ultrasound lesion

6 (66.7%)

7 (46.7%)

12 (50.0%)

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   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

   

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   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%)

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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