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Related Concept Videos

Bacterial Phylum Chlamydiae01:29

Bacterial Phylum Chlamydiae

The phylum Chlamydiae or Chlamydiota is composed of a single order, Chlamydiales. This phylum consists entirely of obligate intracellular parasites that infect eukaryotic hosts. While human pathogens within this group have been studied extensively, the phylum encompasses many species capable of interacting with various eukaryotic organisms. Members of Chlamydiae are typically small cocci, approximately 0.5 μm in diameter, and exhibit a distinctive developmental cycle. As is characteristic of...
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:
Endocarditis II: Clinical Features of Infective Endocarditis01:25

Endocarditis II: Clinical Features of Infective Endocarditis

Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
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,...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Tonsillitis I: Introduction01:30

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.

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Related Experiment Video

Updated: Jul 16, 2026

Iris Fixation via External Pentagram Suturing
05:22

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

Chlamydial conjunctivitis presenting as pre septal cellulitis.

Suzannah R Drummond1, Charles J M Diaper

  • 1Department of Ophthalmology, Southern General Hospital, Glasgow, Scotland, UK. drummond@jordanhillglasgow.wanadoo.co.uk

Head & Face Medicine
|March 16, 2007
PubMed
Summary

Chlamydia trachomatis can cause preseptal cellulitis, a rare complication of conjunctivitis. Prompt diagnosis and treatment with Azithromycin resolved the condition and highlighted the need for STI screening.

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Last Updated: Jul 16, 2026

Iris Fixation via External Pentagram Suturing
05:22

Iris Fixation via External Pentagram Suturing

Published on: May 5, 2022

Area of Science:

  • Ophthalmology
  • Infectious Diseases
  • Public Health

Background:

  • Chlamydia trachomatis is a common sexually transmitted infection in Europe.
  • Chlamydial conjunctivitis typically affects the conjunctiva and cornea.
  • Preseptal cellulitis as a manifestation of chlamydial conjunctivitis is previously undocumented.

Observation:

  • A 15-year-old girl initially diagnosed with viral conjunctivitis presented with severe eyelid edema and erythema.
  • Follicles and papillae were observed on the tarsal conjunctiva, with discomfort during eye elevation.
  • Initial treatment for presumed bacterial preseptal cellulitis was ineffective.

Findings:

  • Chlamydia trachomatis infection was confirmed after negative initial bacteriology and virology.
  • The patient's symptoms resolved completely following Azithromycin treatment.
  • This case highlights a previously undocumented presentation of chlamydia conjunctivitis as preseptal cellulitis.

Implications:

  • Early diagnosis of chlamydia conjunctivitis presenting as preseptal cellulitis is essential.
  • Positive Chlamydia trachomatis diagnosis necessitates patient counseling on potential genital infection.
  • Partner notification and genitourinary clinic referral are critical to prevent further STI spread.