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1دورية أكاديمية
المؤلفون: Ravishankar Dev, Sunil Devika
المصدر: Scripta Medica, Vol 55, Iss 2, Pp 257-261 (2024)
مصطلحات موضوعية: neck paraganglioma, computed tomography, diagnostic imaging, hypervascularity, Medicine
الوصف: Background/Aim: Paragangliomas are rare neuroendocrine tumours arising from paraganglia of the autonomic nervous system. Computed to-mography (CT) imaging plays a crucial role in the evaluation and character-isation of neck paragangliomas. This retrospective study aimed to analyse the CT imaging features of neck paragangliomas to enhance diagnostic accuracy and delineate the radiological characteristics associated with these tumours. Methods: A retrospective review of CT imaging studies of patients diagnosed with neck paragangliomas from March 2021 to October 2023 was conducted. Imaging characteristics including tumour location, size, enhancement pattern, vascularity, calcifications, adjacent tissue involvement and relationship with surrounding structures were analysed. Results: A total of 87 patients with histologically confirmed neck paragangliomas were included in the study. CT imaging revealed typical findings of neck paragangliomas ie well-defined hyper-vascular masses with avid contrast enhancement, commonly located at the carotid bifurcation or along the carotid sheath. In addition, characteristic flow voids and the presence of feeding vessels were observed on CT angiography in a significant number of cases. The imaging analysis also identified calcifications and encasement of adjacent structures as frequent features of advanced stage paragangliomas. Conclusions: CT imaging of neck paragangliomas demonstrated consistent radiological features, including hypervascularity, contrast enhancement and distinct anatomic locations. Knowledge of these imaging characteristics is essential for accurate diagnosis and preoperative planning. Recognition of these features on CT imaging can aid in differentiating paragangliomas from other neck masses and facilitate appropriate management strategies.
وصف الملف: electronic resource
العلاقة: https://scindeks-clanci.ceon.rs/data/pdf/2490-3329/2024/2490-33292402257R.pdfTest; https://doaj.org/toc/2490-3329Test; https://doaj.org/toc/2303-7954Test
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2دورية أكاديمية
المؤلفون: Xiawei Wang, Jianqin Shen, Hongguang Cui, Jianwei Pan, Xiaodong Teng, Min Yan, Shi Feng, Wei Ding
المصدر: BMC Surgery, Vol 21, Iss 1, Pp 1-7 (2021)
مصطلحات موضوعية: Orbital solitary fibrous tumor, Hypervascularity, Transarterial embolization, Operative approach, Case report, Surgery, RD1-811
الوصف: Abstract Background Orbital solitary fibrous tumors (SFTs) are rare neoplasms. Recurrent, hypervascular, malignant variations of orbital SFTs have recently been noted and can present a surgical challenge. Case presentation We describe a case of a 53-year-old Chinese woman with a history of a resected orbital SFT. She presented with proptosis, limited eyeball movement, and visual loss in the right eye, suggestive of a recurrent SFT. Ocular examination with multimodal imaging revealed a large, nonpulsatile, noncompressible, hypervascular mass behind the eyeball. The patient underwent preoperative transarterial embolization of the main blood supply to the tumor in order to control intraoperative blood loss, followed by ocular enucleation to optimize exposure and enable complete resection of the tumor. Embolization of the right ophthalmic artery and the distal branch of the right internal maxillary artery caused an immediate, substantial reduction of vascular flow, which allowed us to enucleate the eyeball and resect the tumor with minimal blood loss and no complications. Conclusions Our case is so far the first Chinese case of successful preoperative embolization of the main blood supply to a large, recurrent, hypervascular orbital SFT. This case also described a different surgical approach to achieve total removal of an orbital SFT without osteotomy.
وصف الملف: electronic resource
العلاقة: https://doaj.org/toc/1471-2482Test
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3
المؤلفون: Nanashima, Atsushi, Tanoue, Yukinori, Hamada, Takeomi, Hiyoshi, Masahide, Imamura, Naoya, Ishii, Mitsutoshi, Yano, Koichi, Kai, Kengo, Sakakibara, Yuka, Nishimuta, Masato, Hamada, Kiyoaki, Nagayasu, Takeshi
المصدر: Acta medica Nagasakiensia. 66(2):57-64
مصطلحات موضوعية: Hypervascularity, Intraoperative ultrasonography, Gallbladder neoplasm, Surgery, Sonazoid-enhancing
الوصف: Background:Ultrasonography using Sonazoid, a novel contrast agent containing microbubbles, is a useful diagnostic modality for intrahepatic mass lesions with specific characteristics in two phases: contrast enhancement of early vascular perfusion and perfusion defect of the lesion in the late phase. To improve the diagnostic accuracy of intraoperative ultrasonography (IOUS) in biliary neoplasms, particularly gall bladder, we investigated the usefulness of the Sonazoid contrast agent in a preliminary study. Subjects and Methods:We examined IOUS images of 23 patients with gall bladder disease. Sonazoid was administered intravenously, and early arterial and venous phase images of the tumor were obtained during laparotomy. Results:Tumors included the localized type of adenomyomatosis in the fundus of the gallbladder (GAM) in seven patients as benign controls, adenomatous diseases in three, and gallbladder carcinoma (GC) in 13. Sonazoid IOUS scanning was performed in all patients, with no adverse effects. Although GC showed high enhancement in 77% of the tumors, GAM and adenoma also showed mild enhancement in more than half of them. Pseudo-positivity was observed in one case of hyperplastic polyps, and pseudo-negativity was observed in two patients. Cholesterol polyps and a suspicious lesion of liver metastasis by the computed tomography were not enhanced with Sonazoid treatment. Conclusion:Although there remains a problem of pseud-positivity in the intracystic lesions, Sonazoid IOUS may be a useful tool to detect vascularity and its location or extension of gallbladder diseases; however, neither significance of differential diagnosis with benign diseases nor other clinical significance was found.
Acta medica Nagasakiensia, 66(2), pp.57-64; 2023وصف الملف: application/pdf
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=jairo_______::3d2dd114b7a8265fac5d5b407c7c91c5Test
https://nagasaki-u.repo.nii.ac.jp/records/28025Test -
4دورية أكاديمية
مصطلحات موضوعية: Radiology and Organ Imaging, Obstetrics and Gynaecology, Sports injury, bone fracture, periosteal thickening, cortical, hypervascularity, ultrasound, Doppler
الوصف: Supplemental material, sj-pdf-4-ult-10.1177_1742271X21995523 for Preliminary image findings of lower limb stress fractures to aid ultrasonographic diagnoses: A systematic review and narrative synthesis by Madeleine Schaper and James Harcus in Ultrasound
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5دورية أكاديمية
مصطلحات موضوعية: Radiology and Organ Imaging, Obstetrics and Gynaecology, Sports injury, bone fracture, periosteal thickening, cortical, hypervascularity, ultrasound, Doppler
الوصف: Supplemental material, sj-pdf-2-ult-10.1177_1742271X21995523 for Preliminary image findings of lower limb stress fractures to aid ultrasonographic diagnoses: A systematic review and narrative synthesis by Madeleine Schaper and James Harcus in Ultrasound
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6دورية أكاديمية
مصطلحات موضوعية: Radiology and Organ Imaging, Obstetrics and Gynaecology, Sports injury, bone fracture, periosteal thickening, cortical, hypervascularity, ultrasound, Doppler
الوصف: Supplemental material, sj-pdf-1-ult-10.1177_1742271X21995523 for Preliminary image findings of lower limb stress fractures to aid ultrasonographic diagnoses: A systematic review and narrative synthesis by Madeleine Schaper and James Harcus in Ultrasound
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7دورية أكاديمية
المؤلفون: Severino Persechino, Armando Bartolazzi, Flavia Persechino, Antonella Tammaro, Sabatino Valente, Salvatore Raffa, Vincenzo Visco, Maria Rosaria Torrisi
المصدر: Dermatology Practical & Conceptual, Vol 10, Iss 2 (2020)
مصطلحات موضوعية: Kimura disease, cyclosporine, carotid hypervascularity, eosinophilia, Dermatology, RL1-803
وصف الملف: electronic resource
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8دورية أكاديمية
المؤلفون: Persechino, Severino, Bartolazzi, Armando, Persechino, Flavia, Tammaro, Antonella, Valente, Sabatino, Raffa, Salvatore, Visco, Vincenzo, Torrisi, Maria Rosaria
المساهمون: Persechino, Severino, Bartolazzi, Armando, Persechino, Flavia, Tammaro, Antonella, Valente, Sabatino, Raffa, Salvatore, Visco, Vincenzo, Torrisi, Maria Rosaria
مصطلحات موضوعية: Kimura disease, carotid hypervascularity, cyclosporine, eosinophilia
العلاقة: info:eu-repo/semantics/altIdentifier/pmid/32363093; info:eu-repo/semantics/altIdentifier/wos/WOS:000580876400003; volume:10; issue:2; journal:DERMATOLOGY PRACTICAL & CONCEPTUAL; http://hdl.handle.net/11573/1396073Test
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المؤلفون: Sandeep Bagla, Ari J. Isaacson, J. Orlando, Sameer Nagda, R. Piechowiak, Abin Sajan
المصدر: Journal of Vascular and Interventional Radiology. 33:177-182
مصطلحات موضوعية: Male, medicine.medical_specialty, medicine.medical_treatment, Elbow, Refractory, Bursitis, Shoulder Pain, medicine, Humans, Radiology, Nuclear Medicine and imaging, Prospective Studies, Embolization, Adverse effect, Prospective cohort study, Shoulder Joint, business.industry, Arterial Embolization, Hypervascularity, Middle Aged, medicine.disease, Embolization, Therapeutic, United States, Surgery, Treatment Outcome, medicine.anatomical_structure, Capsulitis, Female, Cardiology and Cardiovascular Medicine, business
الوصف: To evaluate the safety and efficacy of arterial embolization to relieve shoulder pain secondary to adhesive capsulitis (AC).In total, 20 patients (18 females, 2 males; mean age, 51 years) with AC resistant to30 days of conservative treatment were enrolled in a multicenter prospective study. Adhesive capsulitis embolization was performed with 75-μm or 200-μm spherical particles. Subjects were assessed before and after the procedure with magnetic resonance imaging, visual analog scale (VAS; 0-100 mm) scores, Single Assessment Numeric Evaluation (SANE; 0-100) scores, and American Shoulder and Elbow Surgeons (ASES; 0-100) scores. Adverse events were recorded at all follow-up time points.Hypervascularity was identified and embolization was technically successful in all patients, with 83 arteries embolized in 20 patients. Baseline VAS, SANE, and ASES scores before the procedure were 89.2 mm, 27.2, and 30.9, respectively. The 1-month (n = 19), 3-month (n = 18), and 6-month (n = 12) follow-ups demonstrated significant improvements. At the 1-month follow-up, VAS score decreased by 31.8 (P = 1.2E-11), SANE score increased by 22.1 (P = 1.8E-8), and ASES score increased by 14.2 (P = 4.3E-5). At the 6-month follow-up, VAS score decreased by 62.1 (P = 7.0E-11), SANE score increased by 55.4 (P = 4.1E-10), and ASES score increased by 44.5 (P = 1.8E-6). Due to the coronavirus pandemic, the study ended early; 6 patients did not complete the 6-month follow-up. No major adverse events were noted.Interim findings suggest that arterial embolization is safe and effective for patients with AC refractory to conservative treatment.
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf5e861afa43b813cec74c0d5956fa31Test
https://doi.org/10.1016/j.jvir.2021.10.031Test -
10دورية أكاديمية
المؤلفون: Felix Behan
المصدر: Australasian Journal of Plastic Surgery, Vol 2, Iss 1 (2019)
مصطلحات موضوعية: complications, Dupuytren’s disease, fasciectomy, keystone perforator islander flaps, hypervascularity, Surgery, RD1-811
الوصف: Background: Palmar defects arising from surgical correction for Dupuytren’s disease can be surgically corrected using skin grafts. This article describes the applications of keystone principles as an alternative to John Hueston’s firebreak graft, popularised in the mid-1980s. Method: In 2003, I introduced the principle of a fenestrated, full-thickness graft to optimise graft-take and expedite healing, offering an alternative for the management of palmar defects created by surgical release. Results: The combination of reliable hypervascularity with a pain-free postoperative phase, characteristic of KPIF, ensures an easy recovery with early commencement of hand therapy. With minimal vascular complications (apart from clinical cases where diabetes and smoking are factors) the overall surgical outcome gives an aesthetic appearance matching surrounding tissues. Conclusion: Island flaps based on the keystone principle improve vascularity resulting in minimal complications with healing. Recurrence of Dupuytren’s disease following this technique has not been observed to date.
العلاقة: https://ajops.com/index.php/ajops/article/view/134Test; https://doaj.org/toc/2209-170XTest; https://doaj.org/article/d543eb2c72d64515a3485e4f1a3aed5bTest
الإتاحة: https://doi.org/10.34239/ajops.v2i1.134Test
https://doaj.org/article/d543eb2c72d64515a3485e4f1a3aed5bTest
النص الكامل