2017年1月13日 · This document provides information on juvenile nasopharyngeal angiofibroma (JNA), a benign but locally invasive vascular tumor that most commonly occurs in adolescent boys. It discusses the presentation, diagnostic approach, pathology, theories of pathogenesis, surgical techniques for resection including endoscopic and open approaches ...

2021年4月25日 · This document discusses juvenile nasopharyngeal angiofibroma (JNA), a rare benign but invasive tumor that arises in adolescent males near the sphenopalatine foramen. JNA presents with nasal obstruction and epistaxis. Diagnosis involves imaging like CT and MRI to determine the extent of involvement.

2019年11月5日 · This document provides information on juvenile nasopharyngeal angiofibroma (JNA), a benign but locally invasive vascular tumor that most commonly occurs in adolescent boys. It discusses the presentation, diagnostic approach, pathology, theories of pathogenesis, surgical techniques for resection including endoscopic and open approaches ...

It is a rare, benign, vascular neoplasm that accounts for less than 0.5% of all head and neck tumours. JNAs occur almost exclusively in the nasopharynx of adolescent males. The site of origin of JNA remains controversial. Onset most commonly is in the second decade; range is 7-21 years. Rare in patients older than 25 years.

2014年7月24日 · Juvenile Nasopharyngeal Angiofibroma (JNA) highly vascular benign yet unencapsulated tumor of adolescent males. Frequency: JNA accounts for 0.05% of all head and neck tumors. Sex: JNA occurs exclusively in males.

This document discusses juvenile nasopharyngeal angiofibroma (JNA), a rare benign tumor that affects adolescent males. JNA is highly vascular and locally invasive, potentially causing issues like epistaxis, intracranial spread, and high recurrence rates.

The document discusses epistaxis or nosebleeds, describing the anatomy of the nasal blood supply, common causes of nosebleeds including local trauma and infections as well as systemic issues, and treatments which generally begin with applying direct pressure and may involve nasal packing or cauterization depending on the location and severity of...

2021年2月5日 · Juvenile nasopharyngeal angiofibroma (JNA) is a benign, non-encapsulated, highly vascular tumor, occurring almost exclusively in adolescent males. Although JNAs comprise of less than 0.05% of all head and neck tumors, their tendency to bleed torrentially makes them an interesting disease entity to study and treat [1].

2017年11月25日 · This document discusses juvenile nasopharyngeal angiofibroma (JNA), a rare tumor that typically affects adolescent males. It covers JNA staging systems, arterial blood supply, preoperative embolization techniques, surgical approaches, …

Juvenile nasopharyngeal angiofibroma (JNA) is a benign, non-encapsulated, highly vascular tumor, occurring almost exclusively in adolescent males. Although JNAs comprise of less than 0.05% of all head and neck tumors, their tendency to bleed torrentially makes them an interesting disease entity to study and treat [1].

The juvenile nasopharyngeal angiofibroma is a benign neoplasm of the posterior nasopharynx. It occurs almost exclusively in adolescent males, with an average age at diagnosis of 15 years old.

Juvenile nasopharyngeal angiofibroma (JNA) is a rare, benign, highly vascular, and locally aggressive tumor that predominantly occurs in adolescent males. Usually, the presenting symptom is a painless nasal obstruction or epistaxis; however, other symptoms may develop depending on the size and extent of the tumor mass.

2021年12月11日 · Juvenile nasopharyngeal angiofibroma (JNA) is a rare benign, but the locally aggressive, vascular tumor that occurs almost exclusively in young men. Although this tumor accounts for only about 0.5% of head and neck tumors, it is by far the most common benign nasopharyngeal neoplasm.

2024年4月19日 · Juvenile nasopharyngeal angiofibroma (JNA) is a benign tumor that tends to bleed and occurs in the nasopharynx of prepubertal and adolescent males. [1, 2] Workup...

2019年2月28日 · Juvenile nasopharyngeal angiofibroma (JNA) is a rare, benign, but locally aggressive tumor occurring almost exclusively in adolescent males. JNAs originate from the posterior choanal tissues and rapidly extend into the surrounding regions, including the nasopharynx, the orbits, and even the intracranial cavity.

2017年10月6日 · This document provides information on juvenile nasopharyngeal angiofibroma (JNA), a benign but locally invasive vascular tumor that most commonly occurs in adolescent boys. It discusses the presentation, diagnostic approach, pathology, theories of pathogenesis, surgical techniques for resection including endoscopic and open approaches ...

Juvenile nasopharyngeal angiofibroma (JNA) is a benign vascular tumor that appears in the nasal cavity. Although it is non-malignant (not cancerous), it can expand quickly and extensively.

2022年4月19日 · INTRODUCTION • JNA is a rare, benign, vascular tumour that is almost exclusively found in the male population. • Origin is at the sphenopalatine foramen or, vidian canal. • Diagnosis is based on clinical and radiological evaluation.

Juvenile nasopharyngeal angiofibroma (JNA), while rare, is the most common benign tumor of the space at the back of the nasal cavity that connects the nose to the mouth. These tumors occur almost exclusively in adolescent boys.

2017年10月1日 · This document discusses juvenile nasopharyngeal angiofibroma (JNA), a rare benign but invasive tumor that arises in adolescent males near the sphenopalatine foramen. JNA presents with nasal obstruction and epistaxis. Diagnosis involves imaging like CT and MRI to determine the extent of involvement.