scholarly journals Giant Hepatic Artery Aneurysm

Diagnostics ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 53 ◽  
Author(s):  
Farid Gossili ◽  
Helle D. Zacho
Keyword(s):  
Hepatic Artery ◽  
Incidental Finding ◽  
Artery Aneurysm ◽  
Hepatic Artery Aneurysm ◽  
Positron Emission ◽  
Pet Ct ◽  
Pretreatment Staging ◽  
Fdg Pet Ct ◽  
Aneurysm Diameter ◽  
Pet Ct Scan

Hepatic artery aneurysm (HAA) is the second most common type of visceral aneurysm. Giant HAAs (larger than 5 cm) are very rare. We present a case of an asymptomatic giant hepatic artery aneurysm (diameter 10.7 cm) discovered as an incidental finding on an 18F-fludeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) scan of a patient admitted for pretreatment staging of urothelial carcinoma.

scholarly journals Common hepatic artery aneurysm detected by 18F-FDG PET/CT Imaging

2021 ◽  
Vol 16 (11) ◽  
pp. 3157-3161
Author(s):  
Janata F ◽  
Fezoulidis N ◽  
Barachini O ◽  
Mirzaei S ◽  
Hergan K ◽  
...  
Keyword(s):  
Hepatic Artery ◽  
Fdg Pet ◽  
Artery Aneurysm ◽  
Ct Imaging ◽  
Common Hepatic Artery ◽  
Hepatic Artery Aneurysm ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct

scholarly journals Curious case of fever of unknown origin

2018 ◽  
Vol 11 (1) ◽  
pp. bcr-2018-227258
Author(s):  
Manasvini Bhatt ◽  
Manish Soneja ◽  
Madhavi Tripathi ◽  
Ashutosh Biswas
Keyword(s):  
Ct Scan ◽  
Fdg Pet ◽  
Unknown Origin ◽  
Bone Marrow Examination ◽  
Contrast Enhanced Ct ◽  
Positron Emission ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Pet Ct Scan

A 58-year-old immunocompetent woman presented with fever and significant weight loss of 4-month duration. She had mild pallor; rest of the examination was unremarkable. Investigations revealed anaemia with raised inflammatory markers. Cultures, serologies, routine urine examination, bone marrow examination, contrast enhanced CT and two-dimensional echocardiography examination were unremarkable. An 18F-fluorodeoxyglucose positron emission tomography with CT (18F-FDG-PET/CT) scan was performed which revealed atypical heterogenous uptake in bilateral renal cortex. Subsequently, urine GeneXpert came positive for Mycobacterium tuberculosis with sensitivity to rifampicin. She responded to category 1 antitubercular therapy. The challenges in diagnosis of genitourinary tuberculosis, low sensitivity of conventional diagnostic tests and potential role of GeneXpert and 18F-FDG-PET/CT scan are discussed in this report.

Incidence and Economic Impact of Incidental Findings on 18F-FDG PET/CT Imaging

2018 ◽  
Vol 69 (1) ◽  
pp. 63-70 ◽  
Author(s):  
Scott J. Adams ◽  
Rajan Rakheja ◽  
Rhonda Bryce ◽  
Paul S. Babyn
Keyword(s):  
Incidental Findings ◽  
Incidental Finding ◽  
Ct Imaging ◽  
Whole Body ◽  
Ontario Health Insurance Plan ◽  
Positron Emission ◽  
Pet Ct ◽  
Picture Archiving And Communication ◽  
Fdg Pet Ct

Purpose The study sought to determine the incidence of incidental findings on whole-body positron emission tomography with computed tomography (PET/CT) imaging and the average costs of investigations to follow-up or further characterize incidental findings. Methods Imaging reports of 215 patients who underwent whole-body PET/CT imaging were retrospectively reviewed. Our provincial picture archiving and communication system was queried and patient charts were reviewed to identify all investigations performed to follow-up incidental findings within 1 year of the initial PET/CT study. Costs of follow-up imaging studies (professional and technical components) and other diagnostic tests and procedures were determined in Canadian dollars (CAD) and U.S. dollars (USD) using the 2015 Ontario Health Insurance Plan Schedule of Benefits and Fees and 2016 U.S. Medicare Physician Fee Schedule, respectively. Results At least 1 incidental finding was reported in 161 reports (74.9%). The mean number of incidental findings ranged from 0.64 in patients <45 years of age to 2.2 in patients 75 years of age and older. Seventy-five recommendations for additional investigations were made for 64 (30%) patients undergoing PET/CT imaging, and 14 of those were carried out specifically to follow-up incidental findings. Averaged across all 215 patients, the total cost of investigations recommended to follow-up incidental findings was CAD$105.51 (USD$127.56) per PET/CT study if all recommendations were acted on, and CAD$22.77 (USD$29.14) based on investigations actually performed. Conclusions As the incidence of incidental findings increases with age and a larger proportion of elderly patients is expected as population demographics change, it will be increasingly important to consider incidental findings on PET/CT imaging with standardized approaches to follow-up.

Primary malignant melanoma of the stomach: a rare entity

2020 ◽  
Vol 13 (9) ◽  
pp. e234830
Author(s):  
Pradeep Zechariah ◽  
Suraj Surendran ◽  
Vijay Abraham ◽  
Inian Samarasam
Keyword(s):  
Malignant Melanoma ◽  
Ct Scan ◽  
Fdg Pet ◽  
Gastric Fundus ◽  
Positron Emission ◽  
Pet Ct ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Pet Ct Scan

A 54-year-old man presented with easy fatiguability, dyspnoea on exertion and dyspeptic symptoms. On evaluation, he was found to have an ulcero-proliferative growth in the gastric fundus, the biopsy of which was malignant melanoma of the stomach. Further evaluation with 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) scan showed operable disease with no focus of disease elsewhere. He was diagnosed as primary gastric melanoma and underwent radical total gastrectomy with adequate margins. His postoperative period was uneventful. Further adjuvant therapy was refused by the patient. At 6-month follow-up, an 18F-FDG PET-CT scan was done, which showed no evidence of disease. On follow-up at 1-year, he was alive and asymptomatic.

scholarly journals 18F-fluorodeoxyglucose positron emission tomography-computed tomography scan after gastric endoscopy in those who present with non-specific symptoms, is it necessary or not?

2017 ◽  
Vol 06 (02) ◽  
pp. 059-063
Author(s):  
Haoping Xu ◽  
Rui Guo ◽  
Weihui Xu ◽  
Yanying Pan ◽  
Tao Ma
Keyword(s):  
Ct Scan ◽  
Fdg Pet ◽  
18F Fluorodeoxyglucose ◽  
Positron Emission ◽  
Pet Ct ◽  
Gastric Endoscopy ◽  
18F Fdg ◽  
Fdg Pet Ct ◽  
Pet Ct Scan ◽  
Gastric Malignancy

Abstract Background and Aims: Retrospectively analyze the sensitivity of 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) in the diagnosis of gastric malignancy compared with gastric endoscopy in persons with nonspecific symptoms and evaluate the necessity of 18F-FDG PET-CT scan before surgery. Materials and Methods: A total of 53 patients with gastric malignancy proven by surgery and pathology were enrolled in the study. All the patients underwent gastric endoscopy and PET-CT scan before surgery. And the PET-CT images were interpreted by the observers who were blinded to the results of the gastric endoscopy. The sensitivity of gastric endoscopy, 18F-FDG PET-CT, and serum tumor markers in the diagnosis of gastric malignancy were calculated ultimately. Results: Of 53 gastric malignancy patients, five cases were proven to be false-negative detected by gastric endoscopy, and the sensitivity of which was 90.57%. The sensitivity of PET scan alone was 86.79%, which was observed no significant difference to that of gastric endoscopy diagnosis, P = 0.54. While all of the patients had been detected positive on PET-CT images, the sensitivity of which was significantly higher than that of the gastric endoscopy diagnosis or that of the serum tumor markers, P < 0.001. And the FDG uptake was positively correlated with the depth of the cancer invasion into the gastric wall (P < 0.0001) and the degree of lymph nodes infiltration (P = 0.02). It also various from different differentiation degree significantly, P = 0.04. Conclusions: 18F-fluorodeoxyglucose PET-CT could detect gastric carcinoma in persons with nonspecific symptoms which showed negative in gastric endoscopy. And it is necessary to be aware of the possibility of gastric malignancy when the result of PET-CT scan is positive.

Characteristics of integrated 18F-FDG PET/CT in pulmonary cryptococcosis

2009 ◽  
Vol 50 (4) ◽  
pp. 374-378 ◽  
Author(s):  
Chung-Jen Huang ◽  
Dong-Ling You ◽  
Pei-Ing Lee ◽  
Li-Han Hsu ◽  
Chia-Chuan Liu ◽  
...  
Keyword(s):  
Ct Scan ◽  
Fdg Pet ◽  
Pulmonary Nodules ◽  
Pulmonary Cryptococcosis ◽  
Standardized Uptake Values ◽  
Positron Emission ◽  
Pet Ct ◽  
Metastatic Lung ◽  
Fdg Pet Ct ◽  
Pet Ct Scan

Background: Pulmonary cryptococcosis is an uncommon cause of pulmonary nodules found by 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) scans. It is rarely reported but may mislead interpretation. Purpose: To describe the 18F-FDG PET/CT findings of pulmonary cryptococcosis. Material and Methods: The 18F-FDG PET/CT images of seven patients with pulmonary cryptococcosis were evaluated. Results: The 18F-FDG PET/CT exams showed single or multiple nodular lesions. The standardized uptake values (SUV) in early images varied significantly for the seven patients (ranging from 2.2 to 11.6). Delayed SUVs showed significant increases in four patients. Conclusion: Pulmonary cryptococcosis mimics primary or metastatic lung cancer on 18F-FDG PET/CT scan. Tissue confirmation should be considered for any suspicious pulmonary nodules found on 18F-FDG PET/CT scan with an SUV score higher than 2.5, in order to avoid overdiagnosis or overstaging.

scholarly journals The role of preoperative 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) in retroperitoneal sarcoma

2021 ◽  
Author(s):  
Sung Jun Jo ◽  
Kyeong Deok Kim ◽  
So Hee Lim ◽  
Jinseob Kim ◽  
Seung Hyup Hyun ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Tumor Grade ◽  
Retroperitoneal Sarcoma ◽  
Emission Tomography ◽  
Fluorodeoxyglucose Positron Emission Tomography ◽  
Positron Emission ◽  
Pet Ct ◽  
Fdg Pet Ct ◽  
Pet Ct Scan ◽  
Fluorodeoxyglucose Positron Emission

Abstract 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) scan was used to predict pathologic grade based on the maximum standardized uptake value (SUVmax) in soft tissue sarcoma and bone sarcoma. In retroperitoneal sarcoma (RPS), the effectiveness of PET scan was not well known. This study is designed to investigate the association of SUVmax with histopathologic grade and usefulness of 18 F-FDG PET/CT scan preoperatively. Patients undergoing primary surgery for retroperitoneal sarcoma with preoperative 18F-FDG PET/CT imaging were investigated between January 2001 and February 2020 at Samsung Medical Center. The relationship between SUVmax and histologic features was assessed. The association of SUVmax with overall survival (OS), local recurrence (LR), and distant metastasis (DM) was studied. Of the total 129 patients, the most common histologic subtypes were liposarcoma (LPS, 68.2%) and leiomyosarcoma (LMS,15.5%). The median value of SUVmax was 4.5 (range, 1- 29). The value of SUVmax was correlated with higher tumor grade (p < 0.001, Spearman coefficient 0.627) and mitosis (p < 0.001, Spearman coefficient 0.564) and showed a higher value in LMS (12.04±6.73) than in dedifferentiated liposarcoma (DDLPS, 6.32±4.97, p = 0.0054). The optimal threshold to distinguish high tumor grade was 4.8. High SUVmax group based on the above threshold showed poor prognosis in OS, LR, and DM (p < 0.001). SUVmax was correlated with pathologic parameters (tumor grade, mitosis) in RPS and was higher in the LMS group than DDLPS group. In addition, prognosis (OS, LR, DM) was poor at high SUVmax values (p < 0.001). The value of SUVmax 4.8 is the optimal threshold to rule out high-grade tumors and predict prognosis.

Prognostic Value of Positron Emission Tomography- Computed Tomography in Patients with Marginal Zone Lymphoma

Blood ◽  
2012 ◽  
Vol 120 (21) ◽  
pp. 5084-5084
Author(s):  
Ji Hyun Park ◽  
Dok Hyun Yoon ◽  
Sun Mok Kim ◽  
Jae-Cheol Jo ◽  
Jeongseok Kim ◽  
...  
Keyword(s):  
Ct Scan ◽  
Marginal Zone ◽  
Prognostic Significance ◽  
Marginal Zone Lymphoma ◽  
Post Treatment ◽  
Emission Tomography ◽  
Positron Emission ◽  
Pet Ct ◽  
Fdg Pet Ct ◽  
Pet Ct Scan

Abstract Abstract 5084 Background & Aims 18F-fluorodeoxyglucose (FDG) positron emission tomography-computed tomography (PET-CT) scan has been increasingly used for initial staging and response evaluation in patients with lymphomas, and its clinical utility is well established in diffuse large B-cell lymphoma as well as Hodgkin lymphoma. However, its role remains undetermined in marginal zone lymphomas (MZL), most common type of indolent lymphoma in Korea, due to its relatively low FDG avidity. Thus, we aimed to assess the prognostic significance of PET-CT scan in patients with MZL. Patients & methods We retrospectively reviewed the medical records of a total of 194 patients with pathologically confirmed MZL in the Asan Medical Center between February 2003 and February 2011. Post-treatment FDG PET-CT scan was defined as which performed during the periods of 2 to 4 weeks after the completion of induction chemotherapy or 7 to 9 weeks after radiotherapy. [a4] Among them, both baseline and post-treatment FDG PET-CT scans were performed in 64 patients. We investigated the prognostic significance of maximum standardized uptake value (SUVmax) at baseline PET-CT and metabolic complete response. Metabolic compete response (mCR) was defined as no pathologic FDG uptake at any site in post-treatment PET-CT scan. The log-rank test was used to assess the correlation of progression-free survival (PFS) and overall survival (OS) with baseline SUVmax or the presence of mCR. Results In a total of analyzable 64 patients, histopathologic subtypes of them were as follow: extranodal marginal zone lymphoma (ENMZL=38, 59. 4%) including mucosa-associated lymphoid tissue (MALT) (n=35, 54. 7%) and bronchus-associated lymphoid tissue (BALT) (n=3, 4. 7%) lymphoma, nodal MZL (n=25, 39. 0%), splenic MZL (n=1, 1. 6%). The median SUVmax in baseline PET-CT was 4. 9 (range, 1. 3 – 18. 8). There were no significant associations of baseline SUVmax (cutoff: 5) to mCR at post-treatment PET-CT scan or survival outcomes. Patients group with high SUVmax (SUVmax >5. 0) showed mCR rate of 72. 7 %, and patients low SUVmax (SUVmax ° Â 5) showed mCR rate of 67. 7%, respectively. (p=0. 786). With a median follow-up duration of 46 monthss (range, 13 to 109 months), 5-year OS and PFS rate were 91% and 71%, respectively. 5-year PFS rate (76% vs. 62%, p=0. 27) did not differ between complete metabolic responders and incomplete responders. However, complete metabolic responders showed higher 5 year OS rate compared with incomplete responders (93% vs. 86%, p=0. 43) although statistical significance was not secured. Conclusion In the study cohort, baseline SUVmax was not a significant predictor of mCR, PFS nor OS. However, the patients achieved mCR at the end of induction treatment seemed to have superior survival rates than incomplete responders, which warrants further investigation. Disclosures: No relevant conflicts of interest to declare.

Sign in / Sign up

Export Citation Format

Share Document