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KMID : 1114620080050010026
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Journal of the Korean Society for Breast Screening
2008 Volume.5 No. 1 p.26 ~ p.32
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Locoregional Recurrence in Patients with Breast Cancer Treated with Conserving Surgery and Radiation Therapy: Analysis of US Appearance
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Hahn Soo-Yeon
Han Boo-Kyung
Ko Eun-Young
Shin Jung-Hee
Nam Seok-Jin
Yang Jung-Hyun
Park Won
Im Young-Hyuck
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Abstract
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Purpose: To assess the ultrasonographic (US) detection rate and appearance of locoregional recurrence in patients with breast cancer treated with conserving surgery and radiation therapy.
Materials and Methods: During a 4-year period, we found 40 patients with locoregional recurrence in patients with breast cancer after conserving surgery and radiation therapy who underwent breast US. We reviewed clinical and US characteristics of the recurrence.
Results: The patients aged from 28 to 74 years old (mean; 45 years). The median interval to recurrence from operation was 35 months (range; 5-94). Fourteen were palpable and 26 were nonpalpable. Twenty six cases were recurred in breast and 14 were to lymph nodes. US detected recurrence in 34 of 40 cases (85%) and the detection rate was significantly higher than that of mammography (50%, p < 0.001). Of 23 cases with recurrence in breast, main masses were located near conserving surgery scar in 17, far from scar in 6. The mean size was 1.7 cm (range, 0.3-4.0). Multiplicity was noted in 8 (35%). A noncalcified hypoechoic mass was noted in 13, a calcified mass in 4, and a heterogeneous echoic mass in 6. Of 11 cases with lymph node recurrence, enlarged lymph nodes were detected at axillary fossa and lower axilla in 6,
subclavicular space in 4, supraclavicular area in 4, and internal mammary chain in 1. The mean size was 2.0 cm (range, 0.7-3.2).
Conclusion: An early stage, nonpalpable locoregional recurrence can be successfully detected with US. Recurrence in breast is more frequent than lymph node recurrence and is frequently seen as a noncalcified solid mass near a scar. A heterogeneous mass can mimic a benignity. Lymph node recurrence is most frequent in an axillary fossa.
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KEYWORD
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Breast neoplasms, Postoperative, Ultrasound (US)
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