Direct intratumoral embolization of juvenile angiofibroma

Guidelines for the use of NBCA in vascular embolization devised by the Committee of Practice Guidelines of the Japanese Society of Interventional Radiology (CGJSIR), 2012 edition

“…In addition, high concentrations of NBCA are used for dilated vessels such as varicose veins to reduce the risk of NBCA migration [27]. However, it is necessary to appropriately adjust the concentration of Lipiodol according to the diameter of the target vessel, blood flow velocity, and the distance from the catheter tip to the lesion [11,61,96,166]. NBCA concentrations of \ 50 % are often used in other IR procedures, whereas NBCA concentrations of 12.5-25 % are used to occlude entire arteries during bronchial artery embolization.…”

Extracranial Embolization

“…v) Direct tumour needle puncture and embolization with glue is an option for these tumors. 38 Tumours may have feeders from the carotid, potentially allowing retrograde fl ow of glue to the carotid, so constant vigilance for visualization of dangerous collaterals during the glue injection is mandatory. b) Paragangioma (aka chemodectoma, glomus tumour) i) These tumors include glomus jugulare, glomus tympanicum, carotid body tumours, glomus vagale, or rare paragangliomas of the larynx, orbit, paranasal sinuses, or elsewhere in the head and neck.…”

Treatment outcomes of juvenile nasopharyngeal angiofibroma according to surgical approach

“…In addition, perioperative bleeding can significantly hinder excision. Consequently, most experts agree that preoperative embolization should be performed [9]. Furthermore, postoperative complications including cosmetic deformities, facial scars and facial asymmetry should also be taken into consideration.…”