1.A Case of Thymoma Misdiagnosed as Parathyroid Adenoma on Tc-99m pertechnetate/Tl-201 Subtraction Scintigraphy.
Yong An CHUNG ; Ie Ryung YOO ; Seong Jang KIM ; Soo Kyo CHUNG ; Young Pil WANG ; Ji Han JUNG ; Kyo Young LEE ; Byung Kee KIM
Korean Journal of Nuclear Medicine 2001;35(4):274-279
No abstract available.
Parathyroid Neoplasms*
;
Radionuclide Imaging*
;
Thymoma*
3.Thyroid carcinoma presenting as hot nodule on technetium-99m pertechnetate thyroid scintigraphy.
Young Kee SHONG ; Munho LEE ; Jin Sook RYU ; Dae Hyuk MOON ; Myung Hae LEE
Korean Journal of Nuclear Medicine 1992;26(1):147-150
No abstract available.
Radionuclide Imaging*
;
Sodium Pertechnetate Tc 99m*
;
Thyroid Gland*
;
Thyroid Neoplasms*
4.Early versus delayed post-therapy whole body scintigraphy for well-differentiated thyroid carcinoma: A meta-analysis
Mary Amie Gelina E. Dumatol ; Jessica Elise A. Kuizon ; Michele D. Ogbac
The Philippine Journal of Nuclear Medicine 2023;18(2):32-43
Introduction:
No clear consensus exists as to the optimal timing for conducting whole body scintigraphy (WBS) after
radioactive iodine (RAI) therapy for differentiated thyroid carcinoma.
Objective:
This study aimed to compare the utility of early versus delayed post-therapy WBS in identifying residual lesions and metastases.
Methods
A systematic review of existing literature was done, yielding 6 observational studies relevant to the subject. Meta-analyses were done comparing lesion detecting rates of early (3-4 days post-RAI) and delayed (7-11 days post-RAI) post-therapy WBS for thyroid remnants and metastases in the lymph nodes, lungs, and bone using a random-effects model with odds ratios (OR) and 95% confidence intervals (CIs). A subgroup analysis was also done relating to the type of collimator used in imaging.
Iodine-131
;
Thyroid Neoplasms
;
Iodine Radioisotopes
;
Radionuclide Imaging
5.Positron emission tomography detection of synchronous colon cancer in a patient with chronic lymphocytic leukemia.
Jeong Eun LEE ; Sang Mook BAE ; Moon Sung KIM ; Woo Hyeon KIM ; Kyung Jin YUN ; Min Jung CHO ; Seok Goo CHO
The Korean Journal of Internal Medicine 2013;28(4):500-503
No abstract available.
Adenocarcinoma/pathology/*radionuclide imaging/surgery
;
Biopsy
;
Chemotherapy, Adjuvant
;
Colectomy
;
Colonic Neoplasms/pathology/*radionuclide imaging/surgery
;
Colonoscopy
;
Humans
;
Leukemia, Lymphocytic, Chronic, B-Cell/*radionuclide imaging
;
Male
;
Middle Aged
;
Neoplasms, Multiple Primary/*radionuclide imaging
;
*Positron-Emission Tomography
;
Predictive Value of Tests
;
Treatment Outcome
6.Hepatic inflammatory pseudotumor misinterpreted as hepatocellular carcinoma.
Jae Yoon JEONG ; Joo Hyun SOHN ; Tae Yeob KIM ; Woo Kyoung JEONG ; Jinoo KIM ; Ju Yeon PYO ; Young Ha OH
Clinical and Molecular Hepatology 2012;18(2):239-244
No abstract available.
Adult
;
Carcinoma, Hepatocellular/radiography/radionuclide imaging/ultrasonography
;
Granuloma, Plasma Cell/pathology/*radiography/radionuclide imaging
;
Humans
;
Liver Diseases/pathology/*radiography/radionuclide imaging
;
Liver Neoplasms/radiography/radionuclide imaging/ultrasonography
;
Magnetic Resonance Imaging
;
Male
;
Tomography, X-Ray Computed
7.Comparison of Multislice Spiral CT Dual Phase and Somatosatatin Receptor Scintigraphy in the Diagnosis of Pancreas Neuroendocrine Tumors.
Hui WANG ; Ping LI ; Wei-dong PAN ; Hua-dan XUE
Acta Academiae Medicinae Sinicae 2016;38(3):312-317
Objective To compare the sensitivity of multislice spiral CT dual phase and somatosatatin receptor scintigraphy (SRS) in the diagnosis of pancreas nuroendocrine tumors (pNET). Methods Totally 28 patients with pathologically confirmed pNET recieved both CT dual phase contrast and SRS and the results were compared. Results Of these 28 pNET patients,26 (92.8%) were accurately diagnosed by CT dual-phase scan and 20 (71.4%) by SRS (P=0.031).In the functioning pNET cases,the diagnosis sensitivity of CT dual phase scan and SRS was 94.1% (16/17)and 58.8% (10/17)(P=0.218). In the non-functioning pNET cases,the sensitivity was 90.9% (10/11) and 90.9% (10/11) (P=0.740).Diagnostic sensitivity of CT dual phase scan and SRS for pNET without metastasis was 90.4% (19/21) and 57.1% (12/21) (P=0.125).The sensitivity for pNET with metastasis was 100%(7/7)and 100% (7/7). Corresponding to the pathological grading,the diagnostic sensitivity of CT dual phase scanning and SRS was 84.6% (11/13) and 53.8% (7/13) for G1,100% (12/12) and 83.3% (10/12) for G2,and 100% (3/3) and 100% (3/3) for G3. The diagnostic sensitivity of CT dual phase scan and SRS for pNET with diameter less than or equal to 2.0 cm was 94.7% (18/19) and 52.6% (10/19) (P=0.008). For pNET with diameter more than 2.0 cm,the sensitivity was 92.8% (13/14) and 100% (14/14). Conclusions Compared with SRS,dual phase CT scan is more sensitive in diagnosing pNET,especially for those in lower pathological stages. For lesions sized less than or equal to 2.0 cm,SRS should be combined with other imaging examinations to minimize false negative results.
Humans
;
Neuroendocrine Tumors
;
diagnostic imaging
;
Pancreatic Neoplasms
;
diagnostic imaging
;
Radionuclide Imaging
;
Sensitivity and Specificity
;
Tomography, Spiral Computed
8.F-18 Fluorodeoxyglucose PET/CT and Post Hoc PET/MRI in a Case of Primary Meningeal Melanomatosis.
Hong Je LEE ; Byeong Cheol AHN ; Seong Wook HWANG ; Suk Kyong CHO ; Hae Won KIM ; Sang Woo LEE ; Jeong Hyun HWANG ; Jaetae LEE
Korean Journal of Radiology 2013;14(2):343-349
Primary meningeal melanomatosis is a rare, aggressive variant of primary malignant melanoma of the central nervous system, which arises from melanocytes within the leptomeninges and carries a poor prognosis. We report a case of primary meningeal melanomatosis in a 17-year-old man, which was diagnosed with 18F-fluorodeoxyglucose (F-18 FDG) PET/CT, and post hoc F-18 FDG PET/MRI fusion images. Whole-body F-18 FDG PET/CT was helpful in ruling out the extracranial origin of melanoma lesions, and in assessing the therapeutic response. Post hoc PET/MRI fusion images facilitated the correlation between PET and MRI images and demonstrated the hypermetabolic lesions more accurately than the unenhanced PET/CT images. Whole body F-18 FDG PET/CT and post hoc PET/MRI images might help clinicians determine the best therapeutic strategy for patients with primary meningeal melanomatosis.
Adolescent
;
Brain Neoplasms/*diagnosis/radionuclide imaging
;
Fluorodeoxyglucose F18/diagnostic use
;
Humans
;
*Magnetic Resonance Imaging
;
Male
;
Melanoma/*diagnosis/radionuclide imaging
;
Meningeal Neoplasms/*diagnosis/radionuclide imaging
;
*Positron-Emission Tomography and Computed Tomography
;
Radiopharmaceuticals/diagnostic use
;
Whole Body Imaging
9.Advances in Diagnosis and Treatment of Differentiated Thyroid Cancer in Patients Showing Thyroglobulin Elevative and Iodine Scintigraphy Negative.
Journal of Biomedical Engineering 2015;32(3):707-711
Thyroglobulin (Tg) and radioiodine whole body scan (WBS) have been commonly used in follow-up of patients with differentiated thyroid carcinoma (DTC). Tg is associated with radioiodine uptake in local or distant metastases. In minority of patients, the follow-up scan shows no functioning thyroid tissue, but the serum thyroglobulin is still elevated. Therefore, we review recent developments of diagnosis and treatment of those patients with differentiated thyroid cancer and with thyroglobulin elevation but negative iodine scintigraphy.
Humans
;
Iodine Radioisotopes
;
Radionuclide Imaging
;
Sensitivity and Specificity
;
Thyroglobulin
;
blood
;
Thyroid Neoplasms
;
diagnostic imaging
;
therapy
10.A Case of Multiple Extraadrenal Pheochromocytoma Iocalized by 131 I-MIBG Scan
Sung Hee IHM ; Jae Myung YOO ; Moon Gi CHOI ; Hyung Joon YOO ; Seok Boo YOON ; Jin Bong KIM ; Doo Man KIM ; Jin Seon CHO ; Sang Kon LEE ; Sung Woo PARK
Journal of Korean Society of Endocrinology 1995;10(4):439-444
Peroperative localization of pheochromocytoma is the very crucial step for the successful removal of tumors. Computed tomography(CT) and magnetic resonance(MR) imaging have been commonly used for tumor localization, but in some cases of pheochromocytoma, such as extraadrenal location or distant metastasis of malignant tumor, their localization is somewhat difficult. Recently ^131 I-metaiodobenzylguanidine(MIBG) scintigraphy has been developed and increasingly used for the localization of pheochromocytoma and reported to be more sensitive and specific than CT or MR imaging in the cases of extraadrenal tumor location.We report a case of multiple extraadrenal pheochromocytoma in which ^131 I-MIBG scintigraphy clearly localized two intraabdominal and one bladder tumors, after failure of localization with conventional CT and MR imaging.
Magnetic Resonance Imaging
;
Neoplasm Metastasis
;
Pheochromocytoma
;
Radionuclide Imaging
;
Urinary Bladder Neoplasms