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https://www.readbyqxmd.com/read/28526417/imaging-of-a-pelvic-textiloma-using-18-f-fdg-pet-ct-in-a-patient-with-a-history-of-prostate-cancer-a-case-report-and-review-of-the-literature
#1
Romain Schollhammer, Henri De Clermont-Gallerande, Philippe Fernandez, Marie Meyer
No abstract text is available yet for this article.
April 26, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28526323/-18-f-fdg-pet-ct-helps-in-unmasking-the-great-mimicker-a-case-of-neurosarcoidosis-with-isolated-involvement-of-the-spinal-cord
#2
A Gholamrezanezhad, L Mehta
A 36 year-old male with no significant past medical history presented with lower extremity numbness, gait instability, and urinary and bowel retention of 4 weeks onset. Spine MRI revealed diffuse oedema of cervicothoracic spinal cord with several solid enhancing intramedullary lesions, suggestive of metastases. The (18)F-FDG PET/CT performed to identify the primary malignancy demonstrated mild hypermetabolic foci within the cervicothoracic cord, as well as a mildly hypermetabolic bilateral hilar lymphadenopathy and a mildly hypermetabolic pulmonary nodule, suggestive of sarcoidosis versus metastasis...
May 16, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28525463/fdg-pet-ct-as-a-new-method-for-diagnosis-and-whole-body-evaluation-of-lemierre-syndrome
#3
Jordy P Pijl, Andor W J M Glaudemans, Riemer H J A Slart, Thomas C Kwee
Lemierre syndrome is a rare disease that is defined by a pharyngeal infection, complicated by septicemia and internal jugular vein thrombosis followed by septic emboli. Because of its rarity, a delay in diagnosis is not uncommon. However, given the mortality rate of approximately 2%, prompt diagnosis and detection of septic emboli are essential to initiate prompt treatment, preventing organ damage and ongoing sepsis. We present 3 cases that demonstrate the value of FDG-PET/CT as a possible alternative or adjunct to conventional imaging methods for diagnosis and whole-body evaluation of Lemierre syndrome...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525461/18f-fdg-pet-ct-of-papillary-carcinoma-in-a-lateral-thyroglossal-duct-cyst
#4
Christos Sachpekidis, Matthias S Dettmer, Sabine Weidner, Roland Giger, Jan Wartenberg
A 69-year-old man presented with bulging of the right oropharyngeal wall, which revealed cytopathologically malignant cells. The man underwent MRI and F-FDG PET/CT, which demonstrated a cystic parapharyngeal lesion with an F-FDG-avid soft tissue component and right cervical lymph node. The patient was operated on and showed thyroid cancer in normal thyroid tissue, compatible with a papillary thyroid carcinoma in a lateral thyroglossal duct cyst and 2 ipsilateral lymph node metastases. Despite its rarity, papillary thyroid carcinoma in a thyroglossal duct cyst should be kept as one of the differential diagnoses in patients presenting with parapharyngeal cystic lesion...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525459/the-impact-of-a-bayesian-penalized-likelihood-reconstruction-algorithm-on-the-evaluation-of-indeterminate-pulmonary-nodules-by-dual-time-point-18f-fdg-pet-ct
#5
Tiago Sampaio Vieira, Diogo Borges Faria, Fernando Azevedo Silva, Francisco Pimentel, José Pereira de Oliveira
We present the case of a patient with history of colon cancer, referred for the evaluation of indeterminate pulmonary nodules by F-FDG PET/CT. A dual-time point protocol was performed, and images were reconstructed using VUE Point HD and a Bayesian-penalized likelihood reconstruction algorithm (Q.Clear). Visually, the quality of the images was considered better when Q.Clear was used with β value of 200, uptake in the smallest nodule (7 mm) was clearly visible only with Q.Clear reconstruction, and uptake in the smaller nodules was best defined in the delayed time point acquisition...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525457/stensen-duct-relapse-of-diffuse-large-b-cell-lymphoma-an-unusual-pattern-detected-with-18f-fdg-pet-ct
#6
Punit Sharma, Shilpa Bhartia
F-FDG PET/CT is now an established modality for staging and restaging high-grade lymphomas, including diffuse large B-cell lymphoma. We here present the case of a 51-year-old woman successfully treated for diffuse large B-cell lymphoma. Follow-up F-FDG PET/CT demonstrated an unusual site of relapse involving left Stensen (parotid) duct, which was confirmed with cytology. By identifying such unusual sites of lymphomatous involvement, F-FDG PET/CT can have significant bearing on patient management.
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525455/18f-fdg-pet-ct-of-malignant-angiomyolipoma-with-tumor-thrombus
#7
Andrew Griffin
Renal angiomyolipomas are the most common renal mesenchymal tumors. While classic angiomyolipomas are benign, there are a number of other subtypes. Epithelioid variants are potentially malignant and may be indistinguishable from renal cell carcinoma on imaging. We present a 52-year-old woman who underwent left nephrectomy for an aggressive-appearing malignant renal epithelioid angiomyolipoma. At 6 months postoperatively, restaging FDG PET/CT demonstrated a hypermetabolic left adrenal mass extending to the left adrenal vein, left renal vein, inferior vena cava, and right atrium (SUVmax = 12)...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525454/bilateral-tibial-osteofibrous-dysplasia-on-18f-fdg-pet-ct
#8
Hiroaki Nagano, Megumi Jinguji, Masanori Nakajo, Michiyo Higashi, Takashi Yoshiura
A 17-year-old girl had pain in the right front lower leg while road racing 2 months earlier. Radiography and CT showed osteolytic lesions in the medial part of the bilateral tibia. Bone scintigraphy showed focally increased radiotracer uptake in the bilateral tibia. The lesions showed hypermetabolism on FDG PET/CT. Osteofibrous dysplasia was suspected from the radiographic findings, but adamantinoma or metastases could not be excluded. Surgical biopsies were performed, and histopathologic studies confirmed the diagnosis of bilateral osteofibrous dysplasia...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525452/concomitant-lung-cancer-and-gastrointestinal-stromal-tumor-first-report-of-hypoxia-imaging-with-18f-faza-pet-ct
#9
Paola Mapelli, Elena Incerti, Federico Fallanca, Valentino Bettinardi, Antonia Compierchio, Valeria Masiello, Claudio Doglioni, Francesca Rossetti, Giampiero Negri, Luigi Gianolli, Maria Picchio
A 76-year-old man underwent F-FDG PET/CT to complete staging and characterize a suspicious lung mass. Images showed intense uptake in the lung lesion and faint uptake in correspondence of a gastric mass, which was subsequently biopsied revealing a gastrointestinal stromal tumor. A F-FAZA PET/CT was also performed because of patient's enrollment in a prospective clinical trial (trial registration no. EudraCT 2011-002647-98), showing heterogeneous uptake of F-FAZA in the pulmonary lesion and faint uptake in correspondence of the gastrointestinal stromal tumor...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525451/metastases-from-colorectal-cancer-avid-on-68ga-psma-pet-ct
#10
Lise Hangaard, Mads Ryø Jochumsen, Mikkel Holm Vendelbo, Kirsten Bouchelouche
Ga-PSMA PET/CT is currently used for detection of prostate cancer including metastases, even at low prostate-specific antigen values. A grown number of reports have shown increased uptake of PSMA in neovessels of nonprostatic malignancies including lung cancer, and recently a case report has demonstrated increased PSMA uptake in colorectal adenocarcinoma. In this case report, we demonstrate increased Ga-PMSA uptake on PET/CT in metastases from previously treated colon adenocarcinoma, and it illustrates the importance of histology of suspicious lesions on Ga-PSMA PET/CT...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525450/neuroblastoma-presenting-as-non-mibg-avid-widespread-soft-tissue-metastases-without-bone-involvement-revealed-by-fdg-pet-ct-imaging
#11
Nelleke Tolboom, Sabah E Servaes, Hongming Zhuang
Soft tissue metastases from neuroblastoma very rarely occur without concurrent osseous metastases. We report 1 case of non-MIBG-avid, high-risk neuroblastoma in a pediatric patient who had widespread soft tissue metastases without concurrent osseous lesion on FDG PET/CT imaging.
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525449/spontaneous-recovery-of-rosai-dorfman-disease-on-fdg-pet-ct
#12
Qianqian Xue, Weibing Miao
Rosai-Dorfman disease is a rare systemic proliferative disorder of histiocytes, which mainly manifests as lymphadenopathy but also often involves extranodal tissues. Rosai-Dorfman disease was often self-limited. We hereby report a case of Rosai-Dorfman disease involving both the lymph nodes and the lungs, which was spontaneously resolved on FDG PET/CT.
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28525448/18f-fluorocholine-pet-ct-complementing-the-role-of-dynamic-contrast-enhanced-mri-for-providing-comprehensive-diagnostic-workup-in-prostate-cancer-patients-with-suspected-relapse-following-radical-prostatectomy
#13
Shelvin Kumar Vadi, Baljinder Singh, Rajender K Basher, Ankit Watts, Ashwani K Sood, Anupam Lal, Nandita Kakkar, S K Singh
PURPOSE: The aim of this study was to compare the diagnostic performance of F-fluorocholine (FCH) PET/CT and dynamic contrast-enhanced MRI (DCE-MRI) of pelvis in restaging prostate cancer (PC) patients with biochemical recurrence (BCR) following radical prostatectomy (RP). METHODS: Twenty PC patients who had undergone RP and had BCR were recruited in this study. All the patients underwent whole-body FCH PET/CT and DCE-MRI of the pelvis. An overall pattern of recurrent disease was analyzed, and diagnostic accuracy for the detection of pelvic disease recurrence by the 2 modalities was evaluated by taking histopathologic analysis as the criterion standard...
May 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28524708/significance-of-baseline-fdg-pet-ct-scan-as-a-method-of-staging-regional-lymph-nodes-in-patients-with-operable-distal-oesophageal-or-gastroesophageal-junction-adenocarcinoma
#14
George Papaxoinis, Jamie M J Weaver, Leila Khoja, Ana Patrao, Sofia Stamatopoulou, Alia Alchawaf, Vikki Owen-Holt, Theodora Germetaki, Zoe Kordatou, Wasat Mansoor
BACKGROUND: The new American Joint Committee on Cancer eighth edition (AJCC8) staging is the first to describe separate clinical and pathology staging systems, but still has low performance to predict prognosis in patients with oesophageal/gastroesophageal junction (O/GOJ) adenocarcinoma, who are candidates for surgery. Recent studies have demonstrated that O/GOJ cancer patients with 18F-fluorodeoxyglucose (FDG) avid regional lymph nodes (RLNs) may have poor prognosis. The aim of our study was to examine whether the baseline assessment of the FDG uptake of RLN improves the prognostic accuracy of the new AJCC8 staging...
May 19, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28524246/combined-pet-ct-and-axillary-lymph-node-marking-with-radioactive-iodine-seeds-mari-procedure-for-tailored-axillary-treatment-in-node-positive-breast-cancer-after-neoadjuvant-therapy
#15
B B Koolen, M Donker, M E Straver, M E M van der Noordaa, E J T Rutgers, R A Valdés Olmos, M J T F D Vrancken Peeters
BACKGROUND: The treatment of axillary lymph node metastases after neoadjuvant systemic therapy (NST) remains debatable and axillary lymph node dissection (ALND) is still the standard of care. Marking axillary lymph nodes with radioactive iodine seeds (MARI procedure) is accurate in restaging the axilla after NST (false-negative rate 7 per cent). Here, the potential of tailored axillary treatment, determined by combining the results of PET-CT before NST with those of the MARI procedure after NST, was analysed...
May 19, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28523582/first-in-human-radiation-dosimetry-of-68-ga-nodaga-rgdyk
#16
Silvano Gnesin, Periklis Mitsakis, Francesco Cicone, Emmanuel Deshayes, Vincent Dunet, Augusto F Gallino, Marek Kosinski, Sébastien Baechler, Franz Buchegger, David Viertl, John O Prior
BACKGROUND: Integrin-targeting radiopharmaceuticals have potential broad applications, spanning from cancer theranostics to cardiovascular diseases. We have previously reported preclinical dosimetry results of (68)Ga-NODAGA-RGDyK in mice. This study presents the first human dosimetry of (68)Ga-NODAGA-RGDyK in the five consecutive patients included in a clinical imaging protocol of carotid atherosclerotic plaques. Five male patients underwent whole-body time-of-flight (TOF) PET/CT scans 10, 60 and 120 min after tracer injection (200 MBq)...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28523353/evaluation-of-renal-cell-carcinoma-histological-subtype-and-fuhrman-grade-using-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#17
Reiko Nakajima, Sayumi Nozaki, Tsunenori Kondo, Yoji Nagashima, Koichiro Abe, Shuji Sakai
OBJECTIVES: We evaluated (18)F-fluorodeoxyglucose (FDG) uptake by renal cell carcinomas (RCCs) to determine whether different histological subtypes and Fuhrman grades can be distinguished. METHODS: We retrospectively reviewed the records and maximum standardised uptake value (SUVmax) of 147 patients with 154 RCCs who underwent FDG-positron emission tomography (PET)/computed tomography (CT) prior to tumour resection. RESULTS: The SUVmax was significantly lower in chromophobe RCC (chRCC) tumours than in clear cell RCC (ccRCC; p = 0...
May 18, 2017: European Radiology
https://www.readbyqxmd.com/read/28523180/primary-atypical-carcinoid-tumor-of-the-mediastinum-a-very-rare-finding
#18
Luigi Ventura, Letizia Gnetti, Enrico Maria Silini, Guido Rindi, Paolo Carbognani, Michele Rusca, Luca Ampollini
Primary neuroendocrine tumors (NETs) of the mediastinum are very rare. Prognosis is usually poor despite treatment options. We present the case of a primary atypical carcinoid tumor of the mediastinum successfully treated by multimodal approach. A 50-year-old man presented for asthenia, dyspnea, and substernal sense of weight for two weeks. A chest-CT scan revealed a tumor mass of 107×55×95 mm(3) localized in the anterosuperior mediastinum compressing both brachiocephalic veins, the superior vena cava, the pericardium, and lungs...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28523157/impact-of-maximum-standardized-uptake-value-of-non-small-cell-lung-cancer-on-detecting-lymph-node-involvement-in-potential-stereotactic-body-radiotherapy-candidates
#19
Shanyuan Zhang, Shaolei Li, Yuquan Pei, Miao Huang, Fangliang Lu, Qingfeng Zheng, Nan Li, Yue Yang
BACKGROUND: The retrospective study investigated the association between the maximum standardized uptake value (SUVmax) of primary tumor and lymph node involvement in potential stereotactic body radiotherapy (SBRT) candidates. METHODS: A total of 185 patients with clinical stage I NSCLC were enrolled in the current study. All patients underwent lobectomy with systematic lymph node dissection following preoperative FDG-PET/CT scanning. The association between clinicopathological variables and lymph node involvement was analyzed by univariate and multivariate analysis...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522951/diagnostic-and-prognostic-value-of-preoperative-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-for-colorectal-cancer-comparison-with-conventional-computed-tomography
#20
Joo Young Lee, Soon Man Yoon, Jeong Tae Kim, Ki Bae Kim, Mi Jin Kim, Jae Geun Park, Taek-Gu Lee, Sang-Jeon Lee, Sung Soo Koong, Joung-Ho Han, Hee Bok Chae, Seon Mee Park, Sei Jin Youn
BACKGROUND/AIMS: (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) has been used for preoperative staging of colorectal cancer (CRC). However, the diagnostic accuracy of FDG-PET/CT for detection of lymph node or distant metastasis and its prognostic role have not been well established. We therefore evaluated the diagnostic and prognostic value of FDG-PET/CT in comparison with conventional CT for CRC. METHODS: We investigated 220 patients who underwent preoperative FDG-PET/CT and CT, followed by curative surgery for CRC...
April 2017: Intestinal Research
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