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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Radiol Clin North Am. 2010 Sep;48(5):931–987. doi: 10.1016/j.rcl.2010.06.007

Table 5.

Summary of outcomes of lesions described sonographically as clustered microcysts

Study, Year Number Number of Lesions Biopsied Follow-up Details Number Malignant Results of Biopsies
Berg,19 2003 16 16 After biopsy, 9 resolved, 2
 decreased, 2 stable, 2 NA, 1
 rebiopsied was benign
0 7 AM, 6 FCC, 2 cysts, 1 FA
Berg,35 2005 79, only 66 newb 13b ≥2-y follow-up on 66 lesions:
 35 (53%) stable, 15 (23%)
 resolved, 12 (18%)
 decreased, 4 (6%) initially
 increased then were stable
 or decreased
0 5 AM, 5 FCC, 2 cysts, 1 FAb
Chang et al,21 2007 15 10 aspirated, 4 core biopsied, 1
 excised
Follow-up of some lesions,
 details not clear
0 15 cysts or FCC
Daly et al,22 2008 15 218 aspirated, 32 biopsiedb All followed, details not
specified
0 See Table 1
Total 112b 0

Abbreviations: AM, apocrine metaplasia; FA, fibroadenoma; FCC, fibrocystic changes; NA, not available.

a

All 13 biopsied lesions in the study by Berg, 200535 overlap with the 16 lesions reported in the study by Berg et al, 200319 and are thereby excluded from the total of 79 lesions in the study by Berg, 2005,35 that is, only the 66 lesions which were followed (not biopsied) in the study by Berg, 200535 are new and therefore listed in the overall total.

b

Includes women with lesions prospectively classified as either clustered microcysts or complicated cysts; mean size 13 mm.