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...

in 30 patient with single cold thyroid nodule and normal thyroid function tests, 99mtc-mibi scan is performed. the nodules are divided to hot (10), warm (12) and cold (8). fna reported papillary ca in 4, suspicious follicular neoplasm in 3 and 23 benign lesions. 7 patients were operated on and had final pathology reports (4 papillary ca and 3 benign lesions). all the nodules with no mibi uptake...

Knowledge of the radiochemical purity of radiopharmaceuticals is mandatory and can be evaluated by several methods and techniques. Planar chromatography is the technique normally employed in nuclear medicine since it is simple, rapid and usually of low cost. There is no standard system for the chromatographic technique, but price, separation efficiency and short time for execution must be consi...

Objective The treatment for asymptomatic primary hyperparathyroidism (PHPT) remains controversial. In 2008, the Third International Workshop on the Management of Asymptomatic PHPT proposed a set of guidelines for the management of asymptomatic PHPT. We therefore evaluated the application of the Workshop recommendations in Japanese patients with asymptomatic PHPT. Methods We analyzed each parame...

bone involvement. Destruction is mediated through normal osteoclasts, which respond to local osteoclast-activating microenvironment [7]. Technetium-99m 2methoxyisobutylisonitrile (TC-99m MIBI) is a lipophilic agent that accumulates within living malignant cells due to the higher transmembrane electrical potential as a consequence of the higher metabolic rate than in the surrounding normal cells...

BACKGROUND Chemotherapy is essential to improve the prognosis of the patients with osteosarcoma, and the response to chemotherapy is an important prognostic factor. In this study, the impact of various radiological examinations on overall survival (OS) and event-free survival (EFS) was evaluated. METHOD Eighty-two patients with high-grade osteosarcoma were included in this study, and we evalu...

BACKGROUND Primary hyperparathyroidism is a rare disease characterized by excessive secretion of parathyroid hormone from parathyroid adenoma, hyperplasia, or malignancy. The clinical symptoms of the condition are those of hypercalcemia. Although the lesions are commonly located in the neck region, in about 1-2 % of cases, the lesions are ectopically located within the mediastinum, where surgic...

We describe here a case in which 99mTc-Sn-N-pyridoxy-5-methyltryptophan (99mTc-PMT) scintigraphy was useful in diagnosing renal metastasis of hepatocellular carcinoma (HCC). A 62-year-old man who had undergone hepatectomy for HCC presented 6 years after initial diagnosis with left flank pain and was found on CT and MRI to have a tumor in the left kidney. Hepatobiliary scintigraphy using 99Tc-PM...

Objective: The purpose of the present study was to evaluate the accuracy of double phase Tc sestamibi scintigraphy in the assessment of parathyroid glands in patients with hyperparathyroidism and to compare this method with the high-resolution ultrasonography. Methods: From August-1998 through August-2000, we performed Tc -MIBI scintigraphy (MIBI) and neck ultrasonography in 35 patients who wer...