RT Journal Article SR Electronic T1 Preoperative Evaluation of Sentinel Lymph Node Status in Melanoma by Means of 99mTc-MIBI and Lymphoscintigraphy: A Case Report JF Journal of Nuclear Medicine Technology JO J. Nucl. Med. Technol. FD Society of Nuclear Medicine SP 152 OP 153 VO 29 IS 3 A1 Alonso, Omar A1 Martínez, Miguel A1 Lago, Graciela A1 Espasandin, José YR 2001 UL http://tech.snmjournals.org/content/29/3/152.abstract AB Previous reports have shown that 99mTc-sestamibi (MIBI) could detect clinically occult metastatic melanoma lesions. This article reports on a patient with invasive melanoma of the right heel in whom the sentinel node status was preoperatively evaluated with this tracer. Although regional lymph nodes were clinically negative, 99mTc-MIBI scintigraphy showed focal increased tracer uptake in the right groin that corresponded to the location of 2 sentinel nodes visualized by lymphoscintigraphy with 99mTc-colloidal rhenium sulfide performed the same day. A γ-probe was used intraoperatively to guide the excision of the sentinel nodes that were further classified as metastatic by histopathology. This double-technique approach is technically feasible and has the potential of selecting a group of patients who might benefit from a selective complete lymphadenectomy.