Radioguided occult lesion localization (ROLL) of the nonpalpable breast lesions

J Zgajnar, M Hocevar, S Frkovic-Grazio, K Hertl, E Schweiger, N Besic
Neoplasma 2004, 51 (5): 385-9
Standard localization techniques of the nonpalpable breast lesions (guide wire, carbon, skin marking) have several disadvantages. Radioguided occult lesion localization (ROLL) was recently proposed as a better alternative resulting in wider surgical margins and lower average specimen weight. The aim of our study was to compare ROLL to our previously published series of the standard guidewire localization, performed at the Institute of Oncology Ljubljana. ROLL was performed in 110 nonpalpable breast lesions. Human serum albumin macroaggregats, marked with 1.8-5.5 MBq 99mTc was injected in the nonpalpable lesion. During surgery the radioactive breast tissue was excised using hand held gamma probe. Nonpalpable breast lesions were excised in all 110 patients. The definitive histology revealed 32 invasive carcinomas, 19 DCIS, 5 LCIS in and 54 benign breast lesions. Mean specimen weight was 40 g which is less in comparison to 53 g of the guidewire series (p=0.002). Surgical margins were clear in 36/51 (70%) invasive breast cancer or DCIS patients and close or involved in 15/51 (30%) patients. Compared to the guidewire series, where 41/92 (44%) margins were clear and 51/92 (56%) were close or involved, the difference was statistically significant (p=0.005). ROLL proved to be superior to guidewire localization in our series, allowing excision of the nonpalpable breast lesion with wider surgical margins despite lower average specimen weight.

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