Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Microbiome of the Eye

Microbiome of the Eye

The human eye has a specialized microbiota that reflects its unique anatomical and immunological environment. This low-biomass microbial community predominantly colonizes the conjunctiva and eyelid margins, playing a vital role in ocular surface homeostasis and defense. Despite its proximity to the richly colonized facial skin, the ocular surface maintains a distinct microbial profile due to continuous mechanical and biochemical defense mechanisms.The conjunctival surface hosts fewer microbial...

Acute Pharyngitis

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:

Acute Pyelonephritis II: Diagnostic Studies and Management

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...

Tonsillitis I: Introduction

Tonsillitis I: Introduction

Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.

Chronic Pharyngitis

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,...

You might also read

Related Articles

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

Sort by

Same author

Biochemical and metabolic tissue discrimination using a dual-modality Raman-fluorescence endonasal spectroscopy probe for pituitary adenoma surgery.

Pituitary·2026

Same author

Optimizing cost-effectiveness in the work-up of orbital inflammation: a multicenter, retrospective study.

Orbit (Amsterdam, Netherlands)·2026

Same author

Combination therapy including dupilumab, omalizumab, and mycophenolate mofetil for refractory bullous pemphigoid.

JAAD case reports·2025

Same author

Use of Rituximab in the Management of a Nasopharyngeal Fibrosing Inflammatory Pseudotumor.

Clinical case reports·2025

Same author

Challenges and opportunities for new intraoperative optical techniques in the surgical treatment of pituitary adenomas: a review.

Journal of biomedical optics·2025

Same author

Seminoma-associated orbitopathy mimicking thyroid-associated orbitopathy: report of a case and literature review.

Orbit (Amsterdam, Netherlands)·2024

Search research articles

Related Experiment Video

Updated: Jul 4, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Published on: October 13, 2017

Ethmoiditis Mimicking Acute Dacryocystitis-An Underreported Pathology.

Steffie Arès¹, Philippe Lavigne², Evan Kalin-Hajdu¹

¹Department of Ophthalmology.

Ophthalmic Plastic and Reconstructive Surgery

|July 2, 2026

Summary

Ethmoiditis mimicking acute dacryocystitis (EMAD) is an orbital infection often misdiagnosed as dacryocystitis. Early recognition and specific management, often requiring ethmoidectomy, are crucial for effective treatment and preventing recurrence.

More Related Videos

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

Published on: November 11, 2025

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Published on: April 25, 2025

Related Experiment Videos

Last Updated: Jul 4, 2026

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Transcanalicular Diode Laser-assisted Dacryocystorhinostomy for the Treatment of Primary Acquired Nasolacrimal Duct Obstruction

Published on: October 13, 2017

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

In Vivo Confocal Microscopy in the Diagnosis and Management of Dry Eye: A Focus on Imaging Protocols and Interpretation

Published on: November 11, 2025

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Nasolacrimal Lavage as a Treatment for Ocular Surface Toxic Soup Syndrome

Published on: April 25, 2025

Area of Science:

Ophthalmology
Otorhinolaryngology
Infectious Diseases

Background:

Ethmoiditis mimicking acute dacryocystitis (EMAD) presents as an anterior ethmoid sinus infection extending into the orbit.
This condition is frequently misdiagnosed as acute dacryocystitis due to similar clinical presentations on imaging and examination.
Underreporting of EMAD is suggested by the identification of 5 cases within a 24-month period.

Purpose of the Study:

To review the mechanism, differential diagnosis, and management of ethmoiditis mimicking acute dacryocystitis (EMAD).
To highlight the importance of distinguishing EMAD from acute dacryocystitis for appropriate patient care.

Main Methods:

A systematic literature review was conducted using PubMed, Medline, and Google Scholar.
The review aimed to identify and analyze all documented cases of EMAD.

Main Results:

Eleven cases of EMAD were analyzed, including 5 from the current series.
EMAD was consistently identified as an anterior ethmoid infection adjacent to the lacrimal sac, often mistaken for lacrimal sac abscess.
Key distinguishing features included free lacrimal irrigation (100%) and evidence of sinusitis (73%).
Dacryocystography and endoscopy confirmed the infectious mass location medial to the lacrimal sac.
Medical management (antibiotics, decongestants, glucocorticoids) led to recurrence in 55% of patients, necessitating anterior ethmoidectomy.

Conclusions:

Ethmoiditis mimicking acute dacryocystitis is an underrecognized entity requiring greater clinical awareness.
Accurate diagnosis is critical as management strategies differ significantly from acute dacryocystitis.
Prompt identification and appropriate intervention, potentially including surgery, are essential for successful outcomes.