Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Pharynx01:20

Pharynx

3.5K
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...
3.5K
Suctioning the Oropharyngeal Airway01:25

Suctioning the Oropharyngeal Airway

493
In preparing for oropharyngeal airway suctioning, a nurse must gather all necessary equipment, including a suction unit with tubing, a prepackaged suction kit, sterile gloves, water or saline for irrigation, a water-soluble lubricant, and additional personal protective equipment (such as a gown, mask, and goggles) to control infections.
After assembling the equipment, the nurse should practice hand hygiene and don appropriate PPE according to infection control guidelines to avoid the...
493
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

10.0K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
10.0K
Oral Cavity01:11

Oral Cavity

1.9K
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...
1.9K
Esophageal Perforation-II: Clinical Manifestations and Management01:28

Esophageal Perforation-II: Clinical Manifestations and Management

207
Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:
207
Esophagus01:24

Esophagus

1.6K
The esophagus, a muscular conduit linking the pharynx and stomach, measures roughly 10 inches (25.4 cm) and sits behind the trachea. It remains collapsed when not swallowing. The esophagus follows a predominantly straight path through the thoracic mediastinum and enters the abdominal cavity through a diaphragmatic opening known as the esophageal hiatus.
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...
1.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Prognosis and Biological Characteristics of ER-Low Metastatic Breast Cancer: Results from a Multicenter Cohort and the TONIC Trial.

Clinical cancer research : an official journal of the American Association for Cancer Research·2025
Same author

Sudden onset acute liver failure in a patient with clinically occult small cell lung carcinoma: autopsy report and review of the medical literature.

Autopsy & case reports·2019
See all related articles

Related Experiment Video

Updated: Oct 29, 2025

Learning Modern Laryngeal Surgery in a Dissection Laboratory
07:30

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

8.3K

Epignathus with oropharynx destruction.

Valerio Pellegrini1, Francesco Colasurdo2, Massimiliano Guerriero3

  • 1Ospedale Antonio Cardarelli, Regional Health Authority of Molise, Medical Department, Campobasso, Italy.

Autopsy & Case Reports
|July 12, 2021
PubMed
Summary

This study reports a rare case of an epignathus, an oropharyngeal teratoma, that destroyed a fetus's oral cavity. Histology confirmed it as a high-grade immature teratoma (G3), a grade rarely seen in such cases.

Keywords:
FetusOral TeratomaPathology

More Related Videos

A Minimally Invasive Lesion Technique for Muscles Intrinsic to the Odontophore of Aplysia californica
05:38

A Minimally Invasive Lesion Technique for Muscles Intrinsic to the Odontophore of Aplysia californica

Published on: August 16, 2019

6.2K
Author Spotlight: Investigating Wound Healing in Mice Models of Oronasal Fistulas
03:51

Author Spotlight: Investigating Wound Healing in Mice Models of Oronasal Fistulas

Published on: September 8, 2023

1.4K

Related Experiment Videos

Last Updated: Oct 29, 2025

Learning Modern Laryngeal Surgery in a Dissection Laboratory
07:30

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

8.3K
A Minimally Invasive Lesion Technique for Muscles Intrinsic to the Odontophore of Aplysia californica
05:38

A Minimally Invasive Lesion Technique for Muscles Intrinsic to the Odontophore of Aplysia californica

Published on: August 16, 2019

6.2K
Author Spotlight: Investigating Wound Healing in Mice Models of Oronasal Fistulas
03:51

Author Spotlight: Investigating Wound Healing in Mice Models of Oronasal Fistulas

Published on: September 8, 2023

1.4K

Area of Science:

  • Developmental biology
  • Pathology
  • Teratoma research

Background:

  • Epignathus, a rare oropharyngeal teratoma, typically originates in the head and neck region.
  • Associated intracerebral teratomas are occasionally reported in sporadic cases.
  • Oropharyngeal teratomas causing significant destruction are exceptionally infrequent.

Observation:

  • A fetus presented with a large pharyngeal mass.
  • The mass had completely destroyed the fetal oral cavity.
  • This presentation represents an extreme manifestation of epignathus.

Findings:

  • Histological examination identified the mass as an immature teratoma.
  • The teratoma was classified as Grade 3 (G3) based on its immature components.
  • This is only the second reported case of a G3 immature teratoma presenting as epignathus.

Implications:

  • This case highlights the potential for severe destructive growth in oropharyngeal teratomas.
  • Understanding the aggressive nature of G3 immature teratomas is crucial for diagnosis and management.
  • Further research into the pathogenesis of destructive teratomas may inform future therapeutic strategies.