The Role of Preoperative Onyx Embolization by Transnasal Direct Puncture in the Treatment of an Advanced Juvenile Nasopharyngeal Angiofibroma.

Juvenile nasopharyngeal angiofibroma (JNA) is a rare and locally aggressive tumor that commonly presents with painless nasal obstruction and severe, recurrent epistaxis. In this case report, we describe the successful management of a Radkowski stage IIIA JNA with extensive arterial supply from the internal carotid artery (ICA). Transnasal direct puncture embolization using Onyx (Medtronic, Minneapolis, Minnesota) was employed to effectively devascularize the tumor, enabling radical surgical resection in a single piece via endonasal and transmaxillary endoscopic approaches.

Unilateral Hydrocephalus Due to Lateral Ventricle Colloid Cyst Treated by Neuroendoscopic Approach.

Colloid cysts (CCs) are rare brain tumors that cause nonspecific neurological signs associated with acute or chronic increased intracranial pressure. They are usually located in the third ventricle and rarely in the lateral ventricle. This is a report of an unusual case of CC located in the lateral ventricle.

Microsurgical training model with nonliving swine head. Alternative for neurosurgical education.

Purpose: This paper proposes a practical model of microneurosurgical training using a nonliving swine head.

Methods: Fresh porcine heads were obtained from butchery and dissected at our Laboratory of Microsurgery. Brain and skull base surgery were trained under microscopic magnification.