Ultrastructure of nasopharyngeal angiofibromas

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Embolization of epistaxis and juvenile nasopharyngeal angiofibromas.

This article reviews arterial embolization of epistaxis and juvenile nasopharyngeal angiofibromas. A protocol for the complete and rapid exploration of epistaxis is suggested that is based upon which arteries providing blood to the nasal fossa may be responsible for the bleeding and the most optimal way for their demonstration and evaluation. The relevant anatomy of the major arteries, their br...

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Endoscopic removal of juvenile nasopharyngeal angiofibromas: a video presentation.

OBJECTIVES/HYPOTHESIS Juvenile nasal angiogibroma (JNA) is a relatively rare, benign neoplasm generally seen in prepubertal and adolescent males. In the past, surgical management included lateral rhinotomy, transpalatal and transmaxillary routes, and midface degloving approaches. Endoscopic approaches have become the treatment of choice, especially for tumors limited by size and location criter...

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Endoscopic laser-assisted excision of juvenile nasopharyngeal angiofibromas.

BACKGROUND Juvenile nasopharyngeal angiofibromas (JNAs) are highly vascular tumors that originate in the nasopharynx of young males. The primary treatment is surgical excision. Traditional surgical approaches are associated with significant morbidity and facial deformity. We introduce and outline the clinical advantages of an endoscopic surgical approach to JNAs using the Nd:YAG laser with imag...

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Endoscopic Endonasal Transturbinate Approach to the Pterygopalatine Fossa in the Management of Juvenile Nasopharyngeal Angiofibromas

Pterygopalatine fossa (PPF) is a difficult-to-access anatomic area located behind the posterior wall of the maxillary sinus. Juvenile nasopharyngeal angiofibroma (JNA) often affects this area, and the management of feeding artery to the tumor is important in the surgery. Endoscopic endonasal approach to the PPF without endangering all other nasal structures is useful in the management of JNA. W...

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Vessel density, proliferation, and immunolocalization of vascular endothelial growth factor in juvenile nasopharyngeal angiofibromas.

BACKGROUND Juvenile nasopharyngeal angiofibroma (JNA) is a rare, highly vascularized neoplasm of the nasopharynx that affects boys and young men. The underlying dysregulated molecular mechanisms remain unclear. The participation of angiogenic growth factors has been suggested, but few studies have been published. OBJECTIVES To evaluate the expression and localization of vascular endothelial g...

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ژورنال

عنوان ژورنال: Cancer

سال: 1966

ISSN: 0008-543X,1097-0142

DOI: 10.1002/1097-0142(196612)19:12<1949::aid-cncr2820191223>3.0.co;2-3