Gallegos HJF, Minauro MG, Pichardo P, Sierra SI

Language: Spanish
References: 20
Page: 77-81
PDF size: 82.55 Kb.

ABSTRACT

Introduction: Lymphatic mapping with sentinel node biopsy (LMSNB) is a staging alternative in melanoma and breast cancer. In oral cavity cancer (OCC) without palpable nodes, the recommended surgical treatment is elective-selective neck dissection; nevertheless 70% will not show metastasis. LMSNB might be a staging alternative. Objective; to investigate if this technique allows sentinel node. Material and methods: T1-2, N0, OCC patients › 4 mm of tumor thickness. We injected 3mCi of Rhenium and 2 cc of blue dye around the tumor and performed a lymphogammagraphy. SN was identified by color and radioactivity, all patients submitted to supraomohioid dissection. Index of success, false negative, and negative predictive values were calculated. Results: 32 patients, 18 females and 14 males. Lymphogammagraphy showed a SN in all patients. SN was identified in all patients during surgery: in 23 (75%) the SN was “hot and blue”; in 9 it was “hot” (24%) and in 11/32 showed metastasis. Five of them had a SN negative (false negative). All the patients with false negative had tumors over 2 cm. Conclusions: LMSNB in oral cavity cancer has a high index of success and could avoid the radical neck dissection in 80% of patients with T1-2, N0 tongue cancer.

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