ABSTRACT
INTRODUCTION: A magnetic seed marker system (Magseed, Endomagnetics, Cambridge, United Kingdom) is used as a localisation method for non-palpable breast lesions in the United States, Europe, and Hong Kong. It overcomes many limitations of conventional techniques and allows scheduling flexibility. We sought to evaluate its efficacy and safety in the Chinese population. METHODS: We retrospectively reviewed all Chinese women who underwent magnetic seed marker-guided breast lesion excision from June 2019 to February 2020 at a single institution. Placement success (final target-to-seed distance <10 mm) was evaluated by imaging on the day of surgery. Specimen radiographs and pathology reports were reviewed for magnetic seed markers and target removal. Margin clearance and re-excision rates were analysed. RESULTS: Twenty two magnetic seed markers were placed in 21 patients under sonographic or stereotactic guidance to localise 21 target lesions. One target lesion required two magnetic seed markers for bracketing. There was no migration of nine markers placed 6 to 56 days before the day of surgery. Placement success was achieved in 20 (90.9%) cases. Mean final target-to-seed distance was 3.1 mm. Two out of 21 (9.5%) lesions required alternative localisation due to marker migration ≥10 mm, while 19 (90.5%) lesions underwent successful magnetic seed marker-guided excision. Three of these 19 lesions (15.8%) were excised with therapeutic intent, one of which (33%) required re-excision due to a close margin. All 22 magnetic seed markers were successfully removed. No complications were reported. CONCLUSION: Magnetic seed markers demonstrated safety and efficacy in Chinese women for breast lesion localisation and excision.
Subject(s)
Breast Neoplasms/diagnosis , Early Detection of Cancer/methods , Magnetometry/methods , Adult , Aged , China , Early Detection of Cancer/instrumentation , Female , Humans , Magnetic Phenomena , Magnetometry/instrumentation , Magnets , Mammography , Middle Aged , Pilot Projects , Retrospective StudiesSubject(s)
Catheterization, Peripheral/methods , Embolization, Therapeutic/methods , Gastrointestinal Hemorrhage/diagnostic imaging , Gastrointestinal Hemorrhage/therapy , Aged, 80 and over , Angiography , Endoscopy, Gastrointestinal , Female , Hemostatics/therapeutic use , Humans , Radiography, Interventional , Upper Gastrointestinal Tract/diagnostic imagingSubject(s)
Hydronephrosis/etiology , Sacroiliac Joint , Ureter , Ureteral Obstruction/etiology , Aged, 80 and over , Constriction, Pathologic/diagnostic imaging , Constriction, Pathologic/etiology , Female , Humans , Hydronephrosis/diagnostic imaging , Nephrostomy, Percutaneous/methods , Radiography , Ureteral Obstruction/diagnostic imagingABSTRACT
Haepatocellular carcinoma (HCC) is the most common primary liver malignancy, representing the fifth most common cancer in the world. Without treatment, the median survival of HCC patients has been reported to be 8 weeks from symptomatic presentation. Transarterial chemoembolisation is widely used to manage unresectable HCCs. However, when a tumour is large or locates near the liver capsule, it may receive supplies from vessels other than hepatic arteries. In this paper, we discuss the anatomy of possible extrahepatic collateral arterial supplies of HCCs.