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Oral Cavity

Oral Cavity

The oral cavity, or the mouth, is a complex structure in humans that plays a vital role in our day-to-day lives. Its role is not only in chewing and swallowing food; it also plays a role in speech and facial expressions.
Teeth: The teeth are the hardest structures in our bodies. Humans have two sets of teeth throughout their lifetime: deciduous (baby) teeth and permanent teeth. Each tooth consists of several parts: the crown (visible part), the root (embedded in the jaw), enamel (hard outer...

Assessment of the Mouth

Assessment of the Mouth

A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma Virus (RSV) and Cancer

Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
RSV is a retrovirus that contains two copies of a plus-strand RNA genome. Its genome consists of four main open...

Barrett Esophagus-II: Clinical Manifestations and Management

Barrett Esophagus-II: Clinical Manifestations and Management

Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...

Nose and Nasal Cavity

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...

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Related Experiment Video

Updated: Jul 11, 2026

Intraoperative Assessment of Resection Margins in Oral Cavity Cancer: This is the Way

Intraoperative Assessment of Resection Margins in Oral Cavity Cancer: This is the Way

Published on: May 10, 2021

Oral cavity cancer.

Claudia Kirsch¹

¹Neuroradiology and Head and Neck Radiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1721, USA. CKirsch@mednet.ucla.edu

Topics in Magnetic Resonance Imaging : TMRI

|September 26, 2007

Summary

Magnetic resonance imaging (MRI) is crucial for staging oral cancer and planning treatment. This review details oral cavity anatomy, MRI techniques, and findings for various oral cancers.

Area of Science:

Radiology
Oncology
Anatomy

Background:

The oral cavity contains diverse tissues, making it prone to various cancers.
Clinical examination is limited for assessing tumor depth and margins.
Accurate staging and margin assessment are vital for effective oral cancer treatment planning.

Purpose of the Study:

To review the role of magnetic resonance imaging (MRI) in evaluating oral cavity anatomy and cancer.
To discuss standard MRI techniques and findings for common oral cancers.
To highlight the importance of MRI in tumor staging and treatment planning.

Main Methods:

Review of relevant oral cavity anatomy visualized on MRI.
Discussion of standard MRI sequences and protocols for oral cancer.

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Correlation of MRI findings with American Joint Committee on Cancer (AJCC) staging.

Presentation of imaging examples for various oral cancer sites.

Main Results:

Detailed description of MRI-based anatomy of the lips, gingiva, floor of mouth, and oral tongue.
Illustrative examples of MRI findings in carcinomas of the floor of mouth, oral tongue, buccal mucosa, alveolus, palate, and retromolar trigone.
Emphasis on MRI's role in determining tumor resectability and radiation planning.

Conclusions:

MRI is an indispensable tool for comprehensive evaluation of oral cavity cancers.
Understanding oral anatomy on MRI is key to accurate cancer staging and treatment.
Advanced imaging techniques offer potential for improved oral cancer assessment.