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  • Artigos Originais

    Detection and excision of non-palpable breast lesions by radioguided surgery and air injection for radiological control

    Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):650-655

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    Artigos Originais

    Detection and excision of non-palpable breast lesions by radioguided surgery and air injection for radiological control

    Revista Brasileira de Ginecologia e Obstetrícia. 2005;27(11):650-655

    DOI 10.1590/S0100-72032005001100003

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    PURPOSE: to asses the efficiency of the radioguided localization and removal of occult breast lesions using radiopharmaceuticals injected directly into the lesions or close to them with posterior air injection as a radiological control. METHODS: twenty-nine consecutive patients with thirty-two occult breast lesions detected mammographically or by ultrasound, and categorized 3, 4 and 5 BI-RADS®, were included in this observational study with results expressed in percentages. The radiopharmaceutical used was human serum albumin labeled with 99mTc-HSA injected inside or close to the lesion using mammographic or ultrasonographic guidance. The injection of the radiopharmaceutical was followed immediately by air injection through the needle used for stereotaxis as a radiological control of the radiopharmaceutical placement. The excision biopsy was carried out with the aid of a hand-held gamma-detecting probe and the entire removal of the lesion was verified by X-ray of the surgical specimens or by intraoperative frozen section examination. RESULTS: breast cancer was found in 10.0% (1/10) of the 3 BI-RADS® lesions, in 31.5% (6/19) of the 4 BI-RADS® and in 66.6% (2/3) of the 5 BI-RADS®. The radiotracer was correctly positioned in 96.8% of the specimens (31/32) allowing the removal of also 96.8% of the studied non-palpable breast lesions. To show the entire removal, X-ray was used in 23 cases (71.8%), intraoperative frozen section study in 21.8% (7/32) and both methods in 6.2% (2/32). CONCLUSIONS: radioguided surgery showed to be an important tool in the removal of non-palpable breast lesions, as a simple, fast and feasible method that can be implemented in the clinical routine of these patients.

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    Detection and excision of non-palpable breast lesions by radioguided surgery and air injection for radiological control

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