Clinical nuclear medicine
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Clinical nuclear medicine · Jan 2006
Scintigraphic evaluation of intrathecal infusion systems: selection of patients for surgical or medical management.
Continuous intrathecal medication through a surgically implanted infusion system is an established method for treating intractable spasticity or pain. To determine if imaging can guide surgical or medical management in patients with suspected infusion system malfunction, we reviewed our experience in evaluating the functional status of these systems with indium-111 DTPA scintigraphy. ⋯ Indium-111 DTPA scintigraphy can differentiate between functioning and malfunctioning infusion systems, guiding appropriate medical or surgical management.
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Clinical nuclear medicine · May 2005
Comparative Study Clinical Trial Controlled Clinical TrialIdentification of sentinel lymph node in stage I-II breast cancer with lymphoscintigraphy and surgical gamma probe: comparison of Tc-99m MIBI and Tc-99m sulfur colloid.
To evaluate the efficacy of the surgical gamma probe (SGP) after peritumoral injection of Tc-99m MIBI and filtered Tc-99m sulfur colloid (SC) in sentinel lymph node (SLN) detection in stage I and II breast cancer for deciding on the need for axillary dissection. ⋯ In patients with stage I-II breast cancer, SLN could be successfully demonstrated with lymphoscintigraphy and SGP by the peritumoral injection of filtered Tc-99m sulfur colloid and Tc-99m MIBI.
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Clinical nuclear medicine · Apr 2005
Case ReportsRadioiodine uptake by metastatic nonthyroidal adenocarcinoma of the lung in a patient with papillary thyroid carcinoma.
A 49-year-old woman with a history of a hysterectomy for carcinoma of the cervix and papillary thyroid carcinoma showed multiple pulmonary metastases on chest radiography. An I-131 scan revealed multiple areas of increased uptake in the chest. These lesions were found to be metastatic cervical adenocarcinoma. The radioiodine uptake by the metastatic cervical adenocarcinoma of the lungs occurred in the presence of normal thyroid imaging in a patient with a thyroid nodule and papillary thyroid carcinoma.
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Clinical nuclear medicine · Apr 2005
Case ReportsIndium-111 pentetreotide imaging of carcinoid tumor of the thymus.
Carcinoid tumors are relatively rare and can occur in the thorax, abdomen, or pelvis. Indium-111 pentetreotide scanning is useful for the identification of these tumors. In this report, we present imaging findings and discussion pertaining to a 43-year-old man who presented with Cushing's syndrome resulting from a thymic carcinoid tumor. The imaging is of interest because there is not only marked uptake of In-111 pentetreotide in the thymic carcinoid tumor, but also within the adrenal glands attributable to elevated tumor-derived ACTH. ⋯ This case illustrates the complementary ability of In-111 pentetreotide planar and SPECT imaging and CT to diagnose an ACTH-producing thymic carcinoid tumor leading to adrenal hyperplasia and Cushing's syndrome.