15 research outputs found
Treatment of resectable intrathoracic sarcomas: a single institution experience over twenty years
FDG PET/CT in carcinoma of unknown primary
Carcinoma of unknown primary (CUP) is a heterogeneous group of metastatic malignancies in which a primary tumor could not be detected despite thorough diagnostic evaluation. Because of its high sensitivity for the detection of lesions, combined 18F-fluoro-2-deoxyglucose positron emission tomography (FDG PET)/computed tomography (CT) may be an excellent alternative to CT alone and conventional magnetic resonance imaging in detecting the unknown primary tumor. This article will review the use, diagnostic performance, and utility of FDG PET/CT in CUP and will discuss challenges and future considerations in the diagnostic management of CUP
Multidisciplinary Assessment of Planning and Resection of Complex Bone Tumor Using Patient-Specific 3D Model
Tumors of the Chest Wall
Primary tumors of the chest wall are uncommon.
Chest wall tumors, whether malignant or benign,are classified as primary or secondary (metastatic).The most common benign tumors are osteochondromas and chondromas. The most common malignant chest wall tumors are sarcomas.
Most primary tumors originate in the bones or muscles of the chest wall, though they can also arise from nerves and vessels. Less than half
of malignant chest wall tumors are primary. Secondary tumors originate elsewhere in the body and spread (metastasize) to the chest wall.
The most frequent secondary tumors of the chest wall spread from primary breast and lung cancer. In fact, they can either locally extend to the chest wall, or metastasize to it. Furthermore, other tumors that are not unfrequently spread to the pleura include those originating from ovary, kidney, uterus, head and neck, and testis.
Therefore, almost all secondary tumors are malignant. Most chest wall tumors found in children are primary, while most found in adults are
secondary . It is often difficult to make an accurate presurgical diagnosis and differentiate benign from malignant tumors. Most patients with primary chest wall tumor receive surgical biopsy or radical surgical resection
Incidental pulmonary emboli in stage IV melanoma patients: Prevalence in CT staging examinations and improved detection with vessel reconstructions based on dual energy CT
Incidental pulmonary embolism in oncologic patients—a systematic review and meta-analysis
Purpose!#!Incidental pulmonary embolism (IPE) is a common finding on computed tomography (CT). IPE is frequent in oncologic patients undergoing staging CT. The aim of this analysis was to provide the pooled frequency of IPE and frequencies of IPE in different primary tumors.!##!Methods!#!MEDLINE, SCOPUS, and EMBASE databases were screened for studies investigating frequency of IPE in oncologic staging CT up to February 2020. Overall, 12 studies met the inclusion criteria and were included into the present study.!##!Results!#!The pooled analysis yielded a total of 28,626 patients. IPE was identified in 963 patients (3.36%, 95% CI = 3.15; 3.57). The highest frequency was found in prostate cancer (8.59%, 95%CI = 3.74; 13.44), followed by hepatobiliary carcinoma (6.07%, 95%CI = 3.09; 9.05) and pancreatic cancer (5.65%, 95%CI = 3.54; 7.76). The lowest frequencies were identified in tumors of male reproductive organs (0.79%, 95%CI = 0.21; 1.37) and hematological diseases (1.11% 95%CI = 0.74; 1.48).!##!Conclusion!#!The overall frequency of IPE in oncologic patients was 3.36%. There are considerable differences in regard to primary tumors with the highest frequency in prostate cancer and pancreatic and hepatobiliary carcinomas