RESUMO
The aim of this study is to evaluate meta-iodo-benzyl-guanidine scintigraphy in the diagnosis and the management of neuroblas-toma. betwen September 1999 and jun 2004, 16 children aging from 4 months to 6 years, with neuroblastoma, underwent mlBG scintigraphy in military hospital nuclear medicine department. 23 mlBG scans were done. The exam was indicated for the initial staging in 7 cases, to evaluate chemotherapy or surgery in 12 cases and to seek for reccurences in 3 cases. The sensitivity of mlBG was 57% in the detection of the primary tumor, 100% for liver metastases and 67% for medullar involvement. mlBG scintigraphy should be a standard in the initial staging of neuroblastoma and in evaluating therapy response
RESUMO
The aim of this study is to evaluate the accuracy of scintigraphie preoperative localization of abnormal parathyroid gland. 25 patients with confirmed hyperparathyroidism undergone scintigraphie and ultrasound localization prior to surgery. Paratthyroid scintigraphy was done with thallium - techetium substraction and technetium-tetrofosmin dual phase techniques. scintigraphie sensitivity and specificity was 83% and 100%. In primary hyperparathyroidism the sensitivity was 91% vs 75% in secondary one. Multinodular goiter affected sensitivity [72%]. Ultrasound had an overall sensitivity of 66% and a specificity of 100%. parathyroid scintigraphy is non invasive, accurate and costeffective in localizing abnormal parathyroid gland especialy adenoma