ANGIOFIBROMA NASAL JUVENIL PDF

El Angiofibroma nasofaríngeo juvenil es un tumor benigno vascular (pero que tardíamente Se localiza en la pared posterolateral de la grita nasal a nivel del vínculo de la apófisis esfenoidal del hueso palatino. Esta localización conforma el. Nasal cavity, paranasal sinuses, nasopharynx – Nasopharyngeal angiofibroma. Juvenile nasopharyngeal angiofibroma (JNA) is a rare and benign but locally in the nasopharynx and nasal cavity, leading to manifestations such as nasal.

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Skull base erosion, orbit, infratemporal fossa; no residual vascularity. The third patient with a Fisch I tumor underwent surgery with embolization, but without clamping of the external carotid arteries. Early diagnosis and treatment are required for a good prognosis in JNA.

Improvements in surgical techniques are designed to shorten surgical time and thereby reduce patient morbidity. Bone destruction negligible or limited to the sphenopalatine foramen. The authors believe that this injury may have been secondary to the heat of electrocoagulation.

Juvenile nasopharyngeal angiofibroma

Nasal endoscopy, alone or combined with open techniques, was safe for the resection of angiofibromas at different stages, with low morbidity and high efficacy, as shown by complete tumor removal and low recurrence rates. Intraoperative control of bleeding during the resection of nasopharyngeal angiofibromas can be achieved successfully by temporary clamping of the external carotid arteries in the neck This approach is consistent with the current literature, which recommends that a complete resection through the route associated with the least morbidity should be attempted whenever possible.

Jasal using this site, you agree to the Terms of Use and Privacy Policy. Exclusively endoscopic surgery for juvenile nasopharyngeal angiofibroma. Irradiation may be an option if surgery is not possible or only incomplete resection achieved 2,4,6.

Numerous mast cells were noted with a minimal inflammatory cell infiltrate. Abstract Juvenile nasopharyngeal angiofibroma JNA is a rare benign tumor arising predominantly in the nasopharynx of adolescent males. Unable to process the form. Discussion Analysis of these 13 angiiofibroma suggests that fully endoscopic surgery is viable even in advanced cases of JNA.

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Use of neuronavigation techniques, intraoperative MRI, customized instruments, and ever-increasing surgical experience are all factors contributing to further advancements in this field, toward safer and more effective endoscopic approaches.

Intracranial extension, residual vascularity; M: Any lesion with this presentation may be confused with JNA. Accordingly, the treatment options, operative approach and juveni can be determined. All patients were classified radiologically and surgically according to the Fisch system.

Juvenile nasopharyngeal angiofibroma

The color depends on the vascular component and may vary from pale white in less vascular lesions to a pink and wine colored mass in highly vascularized ones. Biopsy should be avoided as to avoid extensive bleeding since the tumor is composed of blood vessels without a muscular coat. At the time of diagnosis, the mass classically involves the pterygopalatine fossa. However, most authors agree that JNAs arise from the posterior choanal tissues in the region of the nuvenil foramen.

The tumor is primarily excised by external or endoscopic approach. Retrieved from ” https: Treatment trends in patients during 40 years. Examinations such as computed tomography, nuclear magnetic resonance and even nasal endoscopy can clearly establish the extent of the tumor, its pattern of spread, and consequently, surgical planning 10,11,12,16,17,18, Therefore, all cases corresponded to Snyderman grade IV Table 4.

Nasopharyngeal angiofibroma

These lesions include angkofibroma polyps, angiomatous polyps, nasopharyngeal cysts and naal, soft tissue neoplasms such as papilloma, lymphoma, neurofibroma, maxillary malignancies, nasal fossa esthesioneuroblastoma, adenoid hypertrophy, cervical vertebrae cordomas and retropharyngeal ganglia tuberculosis. Due to the benign nature of JNAs, the vast majority of these tumors remain extradural even when there is intracranial extension, 9 and the surgical plane is situated between important structures such as the internal carotid artery and cavernous sinus.

Nasal cavity, paranasal sinuses, nasopharynx Other tumors Nasopharyngeal angiofibroma Author: Factors analyzed angiofiroma patient age and gender, symptoms, stages, treatment, length of surgery, intraoperatory bleeding, postoperative need for nasal tampons, hospitalization time, complications, and tumor recurrence.

The demographic profile, surgical techniques used, immediate and delayed complications, and recurrence rate of the sample are listed in Table 1.

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The vascular supply to JNAs is primarily from angiiofibroma internal maxillary artery branches, particularly the sphenopalatine, descending palatine and posterior superior alveolar branches. Synonyms or Alternate Spellings: Blood vessels were seen in large number at the periphery of the lesion [ Figure 5 ]. From Wikipedia, the free encyclopedia. The infratemporal fossa approach for nasopharyngeal tumors. This study was approved by the local research ethics committee under protocol No.

Pathology Outlines – Nasopharyngeal angiofibroma

Of our 20 patients, only 2 underwent surgery without clamping of the external carotid arteries, with both showing more bleeding than the 18 who underwent surgery with clamping. We analyzed 20 patients with nasopharyngeal angiofibroma who underwent surgery in the otolaryngology service between juvenul Surgery of cranial base tumors.

We nasall found that patients who underwent clamping of the external carotid artery and embolization showed less intraoperative bleeding than patients who underwent embolization alone. Check for errors and try again. Invasion of the intracranial region may lead to cranial nerve palsy. Histopathological examination revealed a proliferative connective tissue stroma interspersed with a thick vascular network. Seventeen patients required clamping of the external carotids and tumor embolization.

The chosen approach was fully endoscopic in three patients, fully external in seven, and combined endoscopic-assisted in three. We analyzed findings in 20 patients who underwent surgery between and It presents as an innocuous, painless, unilateral nasal obstruction with or without epistaxis and rhinorrhea.

The development of minimally invasive techniques has led to the increased use juvneil endoscopic surgery for the treatment of nasopharyngeal angiofibroma 21making it ideal for tumors confined to the nasopharynx, nasal cavity, and sphenoid sinus with minimal extension into the pterygopalatine fossa 10,12,13,15,18, It impinges on adjacent structures and causes pressure erosion of bone.

Endoscopic surgery is less invasive than open surgery, causing less damage to the patient.