Vidal-Sicart S, Pons F, Piulachs J, Castel T, Palou J, Herranz R
Department of Nuclear Medicine, Hospital Clinic, Barcelona, Spain.
Clin Nucl Med. 1998 May;23(5):273-4. doi: 10.1097/00003072-199805000-00001.
A 51-year-old man with a malignant melanoma in his left forearm was studied to detect the sentinel lymph node and to assess the possibility of micrometastases in regional lymph nodes. Lymphoscintigraphy demonstrated two sentinel lymph nodes in the midarm. Two other nodes in the same location as well as in the left axilla were also observed. The exact location of the sentinel lymph nodes was identified with a gamma-ray detector. At the time of surgery, blue dye was injected around the primary lesion and the two sentinel lymph nodes on the inner side of the left arm were resected. Both lymph nodes were pigmented black. The histopathologic study demonstrated metastases from malignant melanoma in both nodes. This case reflects the main role of lymphoscintigraphy in identifying draining lymph nodes in unusual locations as observed in this patient.
一名51岁男性，左前臂患有恶性黑色素瘤，对其进行研究以检测前哨淋巴结，并评估区域淋巴结发生微转移的可能性。淋巴闪烁显像显示上臂中部有两个前哨淋巴结。在同一位置以及左腋窝还观察到另外两个淋巴结。使用伽马射线探测器确定了前哨淋巴结的确切位置。手术时，在原发灶周围注射蓝色染料，并切除了左臂内侧的两个前哨淋巴结。两个淋巴结均呈黑色着色。组织病理学研究表明，两个淋巴结均有恶性黑色素瘤转移。该病例反映了淋巴闪烁显像在识别如该患者所观察到的异常位置的引流淋巴结中的主要作用。
