The aim of this study is to determine the contribution of neck and chest Tc-pertechnetate scan to the management of postoperative patients with suspicious metastatic differentiated thyroid cancer (DTC), particularly to the prediction of response to radioiodine (I) therapy. Just before I administration, a total of 184 postoperative DTC patients with stimulated serum thyroglobulin (ssTg) >10 ng/m...

Accumulation of both Tc-99m pertechnetate and radioiodine upon scintigraphy in thyroid carcinoma and/or in its metastases is a rare occurrence. In this paper we describe a patient who was taken to surgery for left lobectomy of the thyroid with follicular adenocarcinoma and who had accumulation of both I-131 and Tc-99m pertechnetate in lung metastases. The accumulation of I-131 was less than tha...

during the 6-m period, 24 patients with acute scrotal pain were referred to the nuclear medicine department of shaheed labbafi-nejad hospital. their age ranged from 9 to 84 (mean 28.8) years. twelve scans were selected for the study. the scans were performed on angiographic and static phases, using tc-pertechnetate. of the above mentioned cases, one had acute testicular torsion (pre and post op...

OBJECTIVES This study is to assess the prognostic value of (99m)Tc-pertechnetate thyroid scintigraphy for predicting the outcomes of fixed low dose of radioiodine therapy (RIT) in a cohort of Chinese Graves' disease (GD) patients. MATERIALS AND METHODS This is a retrospective study of GD patients who received RIT with a single dose of radioiodine (5 mCi). All the patients received (99m)Tc-per...

Received 10/30/2002; revised 11/19/2002; accepted 12/16/2002. For correspondence or reprints contact: Hatice Uslu, M.D., Department of Nuclear Medicine, Medical School, Atatürk Universty, 25240 Erzurum, Turkey. Tel: 90-442-236-09-00, Fax: 90-442-236-08-84, E-mail: [email protected] Backgrounds: Tl/Tc-pertechnetate subtraction scintigraphy is recognized as a useful procedure in the preoperat...

 Parathyroid adenoma involving a single parathyroid gland is the underlying cause of 80-85% of primary hyperparathyroidism (PHPT). Skeletal system is significantly affected by PHPT. Brown tumors are known to have affinity for 99mTc-MIBI. We report a rare case of PHPT presenting with diffuse bony pain, high calcium level and significantly elevated alkaline phosphatase level. 99m<...

Tc-99m pertechnetate scintigraphy is a standard procedure for diagnosis of Meckel's diverticulum. It usually presents as a static abnormality in the midabdomen. We report a 17-year-old patient with severe lower gasterointestinal bleeding and anemia. On Tc-99m pertechnetate scintigraphy, focal abnormal activity was noted in the abdomen which was moving in the abdominal cavity. The patient underw...

Background: Tc pertechnetate is a well-known anion, used for clinical imaging of thyroid function. This gamma emitter is transported by the sodium iodide symporter but is not incorporated into thyroglobulin. Scintigraphy using Tc pertechnetate or iodide represents a powerful tool for the study of sodium iodide symporter activity in different organs of living animal models. However, in many stud...

tc-99m pertechnetate scintigraphy is the modality of choice for diagnosis of meckel's diverticulum. interpretation of meckel's scan identifies a focal area of radiopharmaceutical uptake in the anterior abdomen similar to normal gastric mucosa. the activity must be of the same pattern and intensity as gastric uptake. we present a 13-year-old patient with gastrointestinal bleeding and anemia. tc-...

A 37-year-old male with a persistent increased parathyroid hormone level, after subtotal thyroidectomy and parathyroidectomy, was referred for scintigraphic localization of a possible ectopic parathyroid adenoma. Tc-99m pertechnetate and Tc-99m MIBI scintigraphy were performed on separate days. There was marked uptake of both tracers in the mediastinum, which at surgery was confirmed to be an e...