Portal de Periódicos da CAPES

Lymphoscintigraphy in Tumors of the Head and Neck Using a Double Tracer Technique

1999; Linguagem: Inglês

10.1007/978-3-0348-8782-3_27

Susanne Klutmann, K. H. Bohuslavizki, Shan Michael Kroger, S. Höft, J.A. Werner, Winfried Brenner, E. Henze,

Ear and Head Tumors

Since knowledge of possible lymphatic drainage may facilitate preoperative planning a method of lymphoscintigraphy with exact correlation of lymphatic drainage to six known cervical compartments is presented. 78 patients with various tumors of the head and neck received 100 MBq Tc-99m-colloid in 3–4 peritumoral sites. 2 ml of perchlorate solution were given orally in order to block the thyroid. Patients received 50 MBq Tc-99m-pertechnetate i.v. for body-contouring 20 min p.i. Planar images were obtained over 5 min each at 30 min and 4–6 h after injection from anterior, right lateral and left lateral using a LFOV-gamma camera. The thyroid was seen in any of the patients. In 28/78=36 % of the patients the injection site was the only focal activity seen. In 50/78=64 % of the patients lymphatic drainage could be observed: 36/78=46 % showed unilateral, and 14/78=18 % exhibited bilateral lymphatic drainage. In all 50 patients showing lymphatic drainage lymph nodes could be easily assigned to the six cervical lymph node compartments described. Accurate correlation of lymphatic drainage and cervical compartments yields the basis for a re-evaluation of its impact in preoperative planning of different procedures of neck dissection.