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Related Concept Videos

Epistaxis01:30

Epistaxis

Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
Etiology
Possible causes of this condition include high blood pressure, trauma, low humidity, upper respiratory tract infections, allergies, foreign bodies, nasal inhalation of corticosteroids or illicit drugs, excessive use of decongestant nasal sprays, facial or nasal surgery, anatomic malformation, tumors, or systemic...
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...
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
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Related Experiment Video

Updated: Jun 18, 2026

Establishment of an Oronasal Fistula Mice Model
03:51

Establishment of an Oronasal Fistula Mice Model

Published on: September 8, 2023

Soft tissue fillers in the nose.

Clinton D Humphrey1, John P Arkins, Steven H Dayan

  • 1Department of Otolaryngology, Division of Facial Plastic and Reconstructive Surgery, University of Illinois Medical Center, Chicago, IL, USA.

Aesthetic Surgery Journal
|December 1, 2009
PubMed
Summary

Soft tissue fillers like hyaluronic acid (HA) and calcium hydroxylapatite (CaHA) offer minimally invasive options for correcting postrhinoplasty nose deformities. Careful patient selection and technique are crucial to minimize potential complications.

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Last Updated: Jun 18, 2026

Establishment of an Oronasal Fistula Mice Model
03:51

Establishment of an Oronasal Fistula Mice Model

Published on: September 8, 2023

Area of Science:

  • Plastic Surgery
  • Dermatology
  • Otolaryngology

Background:

  • Postrhinoplasty deformities present a reconstructive challenge.
  • Minimally invasive soft tissue fillers offer an alternative to revision surgery.
  • Commonly used fillers include hyaluronic acid (HA), calcium hydroxylapatite (CaHA), and silicone.

Purpose of the Study:

  • To evaluate the safety and efficacy of soft tissue fillers for correcting postrhinoplasty nasal deformities.
  • To compare the complication profiles of different filler materials.
  • To define optimal injection techniques and patient selection criteria.

Main Methods:

  • Review of literature on soft tissue fillers used for nasal augmentation.
  • Analysis of complication rates associated with HA, CaHA, and silicone fillers.
  • Discussion of injection techniques, including sub-SMAS placement and anatomical considerations.

Main Results:

  • Silicone fillers are associated with a high risk of severe granulomatous reactions and should be avoided.
  • HA and CaHA fillers are generally safer but can cause complications like infection, skin thinning, and necrosis.
  • Complications are more frequent with injections to the nasal tip and alae compared to the dorsum and sidewalls.

Conclusions:

  • HA and CaHA fillers are acceptable for treating postrhinoplasty deformities in carefully selected patients.
  • Sub-SMAS injection technique and limiting treatment to the nasal dorsum/sidewalls can minimize risks.
  • Close patient monitoring for complications is essential.