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Related Concept Videos

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,...
Cystic Fibrosis: Management01:24

Cystic Fibrosis: Management

Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
Sinus disease and chronic sinusitis...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...
Chronic Obstructive Pulmonary Disease-I: Introduction01:20

Chronic Obstructive Pulmonary Disease-I: Introduction

Chronic Obstructive Pulmonary Disease (COPD) is a long-lasting respiratory condition requiring continuous attention and care. It is a progressive lung disease that leads to breathing challenges due to airflow obstruction. It manifests as persistent respiratory symptoms and restricted airflow resulting from abnormalities in the airways and alveoli, usually due to long-term exposure to harmful particles or gases. COPD mainly consists of two primary conditions: emphysema and chronic bronchitis.
Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics01:23

Upper Respiratory Drugs: Antitussives, Expectorants, and Mucolytics

Respiratory symptoms, such as congestion and cough, commonly accompany respiratory tract conditions. Various medications, such as antitussives, expectorants, and mucolytics, play crucial roles in providing relief.
Antitussives include codeine, dextromethorphan (Robitussin), and benzonatate (Tessalon). Codeine and dextromethorphan exert their effects centrally by suppressing the cough reflex center in the medulla.  Benzonatate operates peripherally within the respiratory tract by anesthetizing...
Tonsillitis II: Management01:26

Tonsillitis II: Management

This lesson will focus on the different treatment options for managing tonsillitis, which typically depend on the cause and severity.

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Related Experiment Video

Updated: May 17, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
06:13

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Published on: June 20, 2018

Low dose ct in chronic sinusitis.

Asruddin1, S P Yadav, R K Yadav

  • 1Department of Otorhinolaryngology and Radiology Pt. B. D. Sharma, Post Graduate Institute of Medical Sciences, Rothak, 124 001 Haryana.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|November 3, 2012
PubMed
Summary
This summary is machine-generated.

Low dose computed tomography (CT) effectively diagnoses chronic sinusitis and anatomical variations. This imaging technique offers results comparable to standard CT with minimal radiation risk, making it suitable for repeated use.

Related Experiment Videos

Last Updated: May 17, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
06:13

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

Published on: June 20, 2018

Area of Science:

  • Radiology
  • Otolaryngology
  • Medical Imaging

Background:

  • Chronic sinusitis is a common condition requiring accurate diagnosis.
  • Identifying predisposing anatomical variants is crucial for understanding disease progression.
  • Computed tomography (CT) is a valuable tool in evaluating sino-nasal anatomy and pathology.

Purpose of the Study:

  • To evaluate the role of low dose CT in diagnosing chronic sinusitis.
  • To identify common anatomical variants associated with chronic sinusitis.
  • To assess the efficacy and safety of low dose CT in this patient population.

Main Methods:

  • A study involving 50 patients diagnosed with chronic sinusitis.
  • Low dose CT scans were performed to visualize sino-nasal structures.
  • Analysis of CT findings to identify disease patterns and anatomical variations.

Main Results:

  • Low dose CT successfully identified chronic sinusitis and associated anatomical variants in 78% of cases.
  • Common anatomical variants included deviated nasal septum (38%), concha bullosa (28%), and Helle cell (28%).
  • The most frequent disease patterns were osteomeatal unit (36%), infundibular (23%), sino-nasal polypopsis (16%), and sphenoethmoidal recess (12%).

Conclusions:

  • Low dose CT is an effective imaging modality for diagnosing chronic sinusitis and identifying predisposing anatomical factors.
  • The diagnostic accuracy of low dose CT is comparable to standard CT.
  • Low dose CT minimizes radiation exposure, making it a safe option for repeated examinations in patients with chronic sinusitis.