1
|
Mao F, Huang J, Cao W, Jin X. Thyroid conical lobe papillary carcinoma: A rare case report. Asian J Surg 2024:S1015-9584(24)01066-2. [PMID: 38839502 DOI: 10.1016/j.asjsur.2024.05.174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 05/23/2024] [Indexed: 06/07/2024] Open
Affiliation(s)
- Fugang Mao
- Department of Ultrasonography, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, 650032, PR China
| | - Jiashi Huang
- Department of Ultrasonography, The Second People's Hospital of Baoshan City, Baoshan, Yunnan, 678000, PR China
| | - Weihan Cao
- Department of Ultrasonography, First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, 650032, PR China
| | - Xin Jin
- Department of Ultrasonography, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, 650032, PR China.
| |
Collapse
|
2
|
Jia Q, Meng Z, Tan J, Zhang G, He Y, Sun H, Yu C, Li D, Zheng W, Wang R, Wang S, Li X, Zhang J, Hu T, Liu NA, Upadhyaya A. Retrospective imaging study on the diagnosis of pathological false positive iodine-131 scans in patients with thyroid cancer. Exp Ther Med 2015; 10:1995-2001. [PMID: 26640586 DOI: 10.3892/etm.2015.2744] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Accepted: 09/01/2015] [Indexed: 11/06/2022] Open
Abstract
Iodine-131 (I-131) therapy and post-therapy I-131 scanning are essential in the management of differentiated thyroid cancer (DTC). However, pathological false positive I-131 scans can lead to misdiagnosis and inappropriate I-131 treatment. This retrospective study aimed to investigate the best imaging modality for the diagnosis of pathological false positive I-131 scans in a DTC patient cohort, and to determine its incidence. DTC patient data archived from January 2008 to January 2010 was retrieved. Post-therapeutic I-131 scans were conducted and interpreted. The imaging modalities of magnetic resonance imaging (MRI), computed tomography and ultrasonography were applied and compared to check all suspected lesions. Biopsy or needle aspiration was conducted for patients who consented to the acquisition of histopathological confirmation. Data for 156 DTC patients were retrieved. Only 6 cases of pathological false-positives were found among these (incidence, 3.85%), which included 3 cases of thymic hyperplasia in the mediastinum, 1 case of pleomorphic adenoma in the parapharyngeal space and 1 case of thyroglossal duct cyst in the neck. MRI was demonstrated as the best imaging modality for diagnosis due to its superior soft tissue resolution. However, no imaging modality was able to identify the abdominal false positive-lesions observed in 2 cases, one of whom also had thymic hyperplasia. In conclusion, pathological false positive I-131 scans occurred with an incidence of 3.85%. MRI was the best imaging modality for diagnosing these pathological false-positives.
Collapse
Affiliation(s)
- Qiang Jia
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Zhaowei Meng
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Jian Tan
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Guizhi Zhang
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Yajing He
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Haoran Sun
- Department of Radiology, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Chunshui Yu
- Department of Radiology, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Dong Li
- Department of Radiology, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Wei Zheng
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Renfei Wang
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Shen Wang
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Xue Li
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Jianping Zhang
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Tianpeng Hu
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - N A Liu
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| | - Arun Upadhyaya
- Department of Nuclear Medicine, Tianjin Medical University General Hospital, Heping, Tianjin 300052, P.R. China
| |
Collapse
|
3
|
Lee M, Lee Y, Jeon T, Chang H, Kim BW, Lee Y, Park C, Ryu Y. Frequent visualization of thyroglossal duct remnant on post-ablation 131I-SPECT/CT and its clinical implications. Clin Radiol 2015; 70:638-43. [DOI: 10.1016/j.crad.2015.02.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 02/18/2015] [Accepted: 02/23/2015] [Indexed: 11/24/2022]
|
4
|
Nabothian cyst associated with high false-positive incidence of iodine-131 uptake in whole-body scans after treatment for differentiated thyroid cancer. Nucl Med Commun 2014; 34:1204-7. [PMID: 24077637 PMCID: PMC3815149 DOI: 10.1097/mnm.0b013e328365911a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective This study aimed to analyze the focal uptake of iodine-131 (131I) in the upper pelvis superior to the urinary bladder on whole-body images of patients who underwent this treatment after thyroidectomy for differentiated thyroid cancer. Methods Between June 2012 and March 2013, 205 patients (72 men and 133 women, with an average age of 47.9±11.7 years) who underwent 131I radioactive treatment after thyroid cancer surgery were analyzed retrospectively. Pathological findings confirmed papillary thyroid carcinoma. A whole-body scan was acquired 5 days after 100–120 mCi sodium iodide was administered orally to the patients. Single-photon emission computed tomography/computed tomography (SPECT/CT) scanning was carried out to locate the lesion; this showed abnormal intense activity in the upper pelvis superior to the urinary bladder, which was further evaluated by ultrasonography. Results Using 131I-SPECT scanning, five (3.76%) female patients were shown to have abnormal focal radioactivity in the lower abdomen. Subsequent SPECT/CT examination showed that the radioactivity was located in the cervix in four of the five patients and in the sigmoid colon in one patient. Transvaginal ultrasonography was performed in the former four patients, which revealed several echo-free regions in the cervix. These findings are consistent with the diagnosis of a nabothian cyst. Three of these patients were administered a second course of radioiodine therapy. Radioactive uptake was still visible at the same sites on whole-body imaging. Conclusion Nabothian cyst should be considered in cases in which abnormal uptake in the upper pelvis superior to the urinary bladder is detected on 131I whole-body scans after differentiated thyroid cancer resection.
Collapse
|
5
|
Carrillo-Cázares TA, Torres-García E. Monte Carlo mitochondrial dosimetry and microdosimetry of 131I. RADIATION PROTECTION DOSIMETRY 2012; 153:411-416. [PMID: 22826354 DOI: 10.1093/rpd/ncs132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A mitochondrion is an organelle found in most eukaryotic cells, which produces most of the energy needed by a living cell. It has been shown that ionising radiation causes mitochondrial damage leading to apoptosis or cell death. The aim of this work was to calculate, by Monte Carlo simulation, the specific energy (z) into the mitochondria, due to Auger electrons, conversion electrons and beta emission from (131)I, where the radionuclide was carried by a vector to the cell surface and the surrounding environment. A concentric spherical geometry represents a cell and its nucleus. Three different volumes were used to represent the mitochondria; they were placed in random positions within the cytoplasm. The z produced by a single event is due to low-energy electrons (76 %) and beta particles (24 %) and the mitochondria receive a total mean z two orders of magnitude higher than that of the cell nucleus.
Collapse
Affiliation(s)
- Tomás A Carrillo-Cázares
- Laboratorio de Simulación Monte Carlo, Coordinación de Posgrado, Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan s/n, esquina Jesús Carranza, Colonia Moderna de la Cruz, Toluca, Estado de México, México
| | | |
Collapse
|
8
|
Increased serum thyroglobulin levels and negative imaging in thyroid cancer patients: are there sources of benign secretion? A speculative short review. Nucl Med Commun 2011; 31:1054-8. [PMID: 21088504 DOI: 10.1097/mnm.0b013e328340e717] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
After thyroidectomy and 131I ablation for differentiated thyroid cancer (DTC), serum thyroglobulin (Tg) became a sensitive marker of residual disease. It is not uncommon to find patients at follow-up with persistent serum Tg levels and no other clinical or imaging evidence for the disease. The vast majority of these patients, most probably, have occult foci of disease, often in minute cervical lymph nodes. A review of the literature including papers published on PubMed/Medline until June 2010 was made. In this study we speculated that a minority of patients who had undergone surgery for differentiated thyroid cancer might have benign sources of Tg secretion at follow-up. These sources may be foci of radio-resistant ectopic thyroid tissue or a thyroid stimulating hormone-stimulated thymus.
Collapse
|