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Related Concept Videos

Nose and Nasal Cavity01:24

Nose and Nasal Cavity

The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
Chronic Pharyngitis01:23

Chronic Pharyngitis

Chronic pharyngitis refers to persistent inflammation of the pharyngial mucosa.
Etiology
It often arises from persistent viral or bacterial infections affecting sinuses and tonsils.
Additional contributing factors include inadequate dental hygiene, mouth breathing, recurring tonsillitis, allergic rhinitis, laryngopharyngeal reflux, and exposure to smoke, chemicals, and other environmental pollutants. Allergic reactions to pollen, mold, and pet dander, chronic cough, excessive voice usage,...
Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract.
Cranial Bones: Lateral View01:27

Cranial Bones: Lateral View

The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
The temporal bone forms the lower lateral side of the skull. The temporal bone is subdivided into several regions. The flattened upper portion is the squamous portion of the temporal bone. Below this area and projecting anteriorly is the zygomatic process of the temporal bone, which forms the posterior portion of the zygomatic arch. Posteriorly is the mastoid portion of the temporal bone. Projecting...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...
Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
Equipment Required

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Updated: May 11, 2026

Identification of OTX1 and OTX2 As Two Possible Molecular Markers for Sinonasal Carcinomas and Olfactory Neuroblastomas
07:00

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Published on: February 28, 2019

Chapter 9: Benign sinonasal neoplasms.

Patrick T Hennessey1, Douglas D Reh

  • 1Department of Otolaryngology–Head and Neck Surgery, The Johns Hopkins Sinus Center, Baltimore, Maryland 21287, USA.

American Journal of Rhinology & Allergy
|May 29, 2013
PubMed
Summary
This summary is machine-generated.

Benign sinonasal neoplasms present with common symptoms like nasal obstruction. Accurate diagnosis through clinical, histological, and radiographic evaluation is crucial for effective treatment planning.

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Area of Science:

  • Otolaryngology
  • Head and Neck Surgery
  • Pathology

Background:

  • Benign sinonasal neoplasms encompass diverse tumors.
  • Common symptoms include nasal obstruction, anosmia, rhinorrhea, and epistaxis.
  • Accurate diagnosis is vital for appropriate management.

Purpose of the Study:

  • To review the clinical presentation, diagnostic findings, and treatment options for benign sinonasal neoplasms.

Main Methods:

  • Review of clinical presentation.
  • Analysis of histological findings.
  • Evaluation of radiographic characteristics.
  • Discussion of treatment strategies.

Main Results:

  • Benign sinonasal neoplasms exhibit varied clinical presentations.
  • Histological and radiographic findings aid in diagnosis.
  • Treatment is tailored to specific tumor types and patient factors.

Conclusions:

  • Comprehensive evaluation including clinical, histological, and radiographic assessment is essential.
  • Timely and accurate diagnosis leads to optimal treatment outcomes for benign sinonasal neoplasms.