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Emergency And Acute Medicine – Dacryocystitis And Dacryoadenitis


Core Description
Dacryoadenitis and dacryocystitis are inflammatory disorders of the lacrimal system. Dacryoadenitis refers to inflammation or infection of the lacrimal gland, which produces tears. Dacryocystitis is a suppurative infection of the lacrimal drainage system, specifically the lacrimal sac, usually occurring in the setting of ductal obstruction. Dacryoadenitis may be inflammatory or infectious and can result from contiguous spread or systemic disease, whereas dacryocystitis is almost always infectious due to tear stasis within an obstructed duct.


Epidemiology
Dacryoadenitis is uncommon and is more frequently seen on the left side. Acquired cases are rare. Dacryocystitis is more common, most often affecting adult females older than 30 years, though it may also present in infants.


Etiology Of Dacryoadenitis
Dacryoadenitis is most commonly associated with systemic inflammatory and autoimmune conditions, including Sjögren syndrome, sarcoidosis, Crohn disease, and lacrimal gland tumors. Infectious causes may be primary or secondary to contiguous spread from bacterial conjunctivitis or periorbital cellulitis. Acute suppurative dacryoadenitis in adults is most often caused by Staphylococcus aureus, streptococci, Chlamydia trachomatis, and Neisseria gonorrhoeae. Chronic dacryoadenitis is more commonly related to nasal flora rather than ocular organisms.


Pediatric Considerations In Dacryoadenitis
In children, viral causes predominate, including mumps, measles, Epstein–Barr virus, cytomegalovirus, coxsackievirus, and varicella-zoster virus. A slowly enlarging lacrimal gland mass in children may represent a dermoid cyst rather than infection.


Etiology Of Dacryocystitis
Under normal conditions, tears drain through the lacrimal duct into the lacrimal sac and then into the middle turbinate and sinuses via a pumping mechanism. Dacryocystitis develops when the duct becomes partially or completely obstructed. In adults, chronic inflammation related to ethmoid sinusitis is a common underlying cause, though trauma, dacryoliths, nasal or sinus surgery, or any local obstructive process may contribute. Obstruction leads to tear stasis, bacterial overgrowth, and infection. The infection may be recurrent or chronic. Sinus flora predominate over ocular flora, with Staphylococcus aureus being the most common organism. Complications include draining fistulae, recurrent conjunctivitis, abscess formation, and orbital cellulitis.


Pediatric Considerations In Dacryocystitis
Congenital dacryocystitis typically presents in infancy due to dacryocystoceles and carries high morbidity and mortality, often from systemic spread of infection. The most common pathogen in this population is Streptococcus pneumoniae.


Clinical Presentation
Both dacryoadenitis and dacryocystitis usually present with unilateral eye pain, redness, and swelling.


Dacryoadenitis Symptoms And Signs
Patients may develop acute or indolent swelling and erythema of the upper eyelid, with maximal tenderness in the temporal portion beneath the orbital rim, producing an S-shaped eyelid. A palpable mass may be present. Associated findings include conjunctival injection, discharge, chemosis, variable tear production, ipsilateral preauricular lymphadenopathy, and surrounding cellulitis. Systemic toxicity may occur. Visual acuity, slit-lamp examination, and funduscopic findings are typically normal, though globe displacement may cause visual distortion. Chronic dacryoadenitis presents as a slowly progressive, painless swelling.
Alert: Rapidly assess for possible spread from gonococcal conjunctivitis, as morbidity is high, visual loss is likely, systemic illness is common, and treatment differs significantly.


Dacryocystitis Symptoms And Signs
Dacryocystitis presents as an acutely inflamed, localized mass inferior and medial to the inner canthus. Epiphora is the hallmark symptom due to tear outflow obstruction. Applying pressure to the mass may express purulent material from the punctum, which is diagnostically helpful. Lower eyelid cellulitis may occur. Fever is usually low grade, and patients rarely appear toxic.


Essential Evaluation
A complete ocular examination is required, including visual acuity, extraocular movements, slit-lamp examination, funduscopic examination, eyelid eversion, and nasal inspection.
Pediatric Alert: Carefully assess for extension to orbital cellulitis or meningitis.


Diagnostic Testing And Interpretation
Purulent material should be sent for Gram stain, culture, and sensitivity testing. Chocolate agar should be used if gonococcal infection is suspected. CBC and blood cultures may be obtained when systemic infection is suspected. CT imaging of the orbit and sinuses is indicated to assess for deep tissue involvement, recurrent dacryoadenitis, or suspected orbital extension, particularly in children or high-risk patients.


Differential Diagnosis
For dacryoadenitis, consider autoimmune disease, lacrimal gland tumors, hordeolum, periorbital or orbital cellulitis, severe blepharitis, insect bites, and traumatic injury.
For dacryocystitis, consider insect bites, trauma, acute ethmoid sinusitis, periorbital cellulitis, and acute conjunctivitis.


Emergency Department Management
Early recognition and treatment are essential to prevent local extension and systemic infection. Topical antibiotics may be used to prevent secondary conjunctivitis.


Management Of Dacryoadenitis
Supportive care includes cool compresses and nonsteroidal analgesics. Viral causes are typically self-limited. Bacterial infections require antibiotics, with oral agents such as cephalexin or amoxicillin/clavulanate for mild cases and intravenous therapy such as cefazolin or ticarcillin/clavulanate for severe infections. Administer tetanus toxoid when indicated. Incision and drainage are rarely required and should be performed only in severe cases with ophthalmology or facial surgery consultation.
In children, use cool compresses and analgesics; if the cause is unclear, treat empirically with antibiotics as in adults.


Management Of Dacryocystitis
Drainage of the infected lacrimal sac is essential. Warm compresses and gentle massage may relieve obstruction. Intranasal vasoconstrictors can facilitate drainage. Incision and drainage should be avoided in the ED when possible, as it increases the risk of fistula formation. Duct instrumentation is contraindicated in the acute setting due to risk of permanent scarring and stenosis. Use topical ophthalmic antibiotics to prevent conjunctivitis and systemic antibiotics to treat infection and prevent spread. Administer intravenous antibiotics for febrile or severe infections. Provide adequate analgesia.


Pediatric Management Considerations
Newborns typically respond to massage and topical antibiotics in approximately 95% of cases. Failure to resolve within the first year may require ophthalmologic probing. Children younger than 4 years with dacryocystitis are at increased risk for Haemophilus influenzae infection if not fully immunized. Afebrile, well-appearing children with reliable caregivers may be treated with oral cefaclor or amoxicillin/clavulanate, while acutely ill children require intravenous cefuroxime due to the high risk of bacteremia, septicemia, and meningitis.


Pharmacologic Therapy
Recommended agents include amoxicillin/clavulanate, cefaclor, cefazolin, cefuroxime, cephalexin, erythromycin ophthalmic ointment, trimethoprim–polymyxin ophthalmic ointment, and ticarcillin/clavulanate, dosed appropriately for adults and children. Intranasal tetracaine and phenylephrine may be used to facilitate drainage.


Disposition And Follow-Up
Hospital admission is indicated for febrile or toxic adults, immunocompromised patients, extensive cellulitis, suspected deep tissue or meningeal spread, and high-risk pediatric cases, including unimmunized children or those without reliable follow-up. Prompt ophthalmology referral is required for all cases. Patients with dacryocystitis require confirmation of complete drainage and assessment for definitive intervention to prevent recurrence before discharge.


Key Clinical Lessons And Common Errors
In any patient with a red eye and eyelid swelling, the lacrimal system must be carefully examined. Skin incision and drainage of dacryocystitis should be avoided whenever possible to prevent fistula formation; intranasal vasoconstrictors are preferred to facilitate drainage.


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