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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,...
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
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Pharynx01:20

Pharynx

The pharynx, a tubular structure framed by skeletal muscle and lined with mucous membrane, extends continuously from the nasal cavities. It is segmented into three major areas: the nasopharynx, oropharynx, and laryngopharynx.
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
Pneumonia I: Introduction01:30

Pneumonia I: Introduction

Pneumonia is an acute respiratory infection that targets the lungs, specifically the alveoli. These tiny air sacs, essential for oxygen exchange, become engorged with pus and fluid, severely hindering breathing, decreasing oxygen absorption, and causing significant pain and discomfort during respiration.
Risk Factors
Various factors influence the likelihood of developing pneumonia. Age plays a crucial role, with infants, children under two, and individuals over 65 at increased risk due to their...
Acute Pharyngitis01:30

Acute Pharyngitis

Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:

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Related Experiment Videos

Nasopharyngeal carcinoma.

V F H Chong1, C K Ong

  • 1Department of Diagnostic Radiology, National University Hospital, Yong Loo Lin School of Medicine, National University of Singapore, Singapore. dnrcfhv@nus.edu.sg

European Journal of Radiology
|May 20, 2008
PubMed
Summary

Accurate imaging is crucial for staging nasopharyngeal carcinoma (NPC). This review details imaging findings that impact NPC stage, treatment decisions, and complication assessment.

Area of Science:

  • Radiology
  • Oncology
  • Head and Neck Surgery

Background:

  • Nasopharyngeal carcinoma (NPC) staging is critical for treatment planning.
  • Clinical examination alone is insufficient for assessing deep tumor extension.
  • Imaging is essential for determining the full extent of NPC, including skull base and intracranial involvement.

Purpose of the Study:

  • To outline key imaging findings in nasopharyngeal carcinoma.
  • To correlate imaging findings with accurate staging.
  • To discuss how imaging impacts treatment strategies and the identification of post-treatment complications.

Main Methods:

  • Review of relevant literature on nasopharyngeal carcinoma imaging.
  • Analysis of imaging characteristics across various modalities (e.g., MRI, CT, PET-CT).

Related Experiment Videos

  • Correlation of imaging findings with established staging systems.

    • Main Results:

    • Specific imaging features predict local invasion, nodal status, and distant metastasis.
    • Advanced imaging techniques reveal subtle skull base erosion and perineural spread.
    • Imaging is vital for detecting treatment-related changes and complications.

    Conclusions:

    • Comprehensive imaging evaluation is indispensable for precise nasopharyngeal carcinoma staging.
    • Radiological assessment directly influences therapeutic decisions and patient management.
    • Understanding imaging findings aids in monitoring treatment response and managing complications.