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Conjunctival cytology of adult chlamydial conjunctivitis
Abstract:
We assessed the diagnostic value of ocular cytologic examination by reviewing Giemsa-stained smears of conjunctival scrapings. Of 387 patients with a clinical diagnosis of adult chlamydial conjunctivitis, intracytoplasmic inclusions were found in 30 (8%). Both polymorphonuclear leukocytes and lymphocytes were common; the predominant cell type was not useful to differentiate chlamydial from adenoviral conjunctivitis. More sensitive cytologic features included the presence of plasma cells, Leber cells, blastoid cells, and multinucleated cells. Giemsa-stained conjunctival cytologic examination can provide a useful method to support the clinical diagnosis and to direct further laboratory testing.
Insights
Ocular cytologic examination of conjunctival scrapings aids in diagnosing adult chlamydial conjunctivitis. Specific cell types like plasma cells are key indicators, supporting clinical diagnosis and guiding lab tests.
Area of Science:
- Ophthalmology
- Cytopathology
- Infectious Diseases
Background:
- Adult chlamydial conjunctivitis is a common infection.
- Accurate diagnosis is crucial for effective treatment and preventing spread.
- Ocular cytology offers a potential diagnostic tool.
Purpose of the Study:
- To evaluate the diagnostic utility of Giemsa-stained conjunctival cytologic examination for adult chlamydial conjunctivitis.
- To identify specific cytologic features indicative of chlamydial infection.
Main Methods:
- Review of Giemsa-stained conjunctival smears from 387 patients with suspected adult chlamydial conjunctivitis.
- Analysis of cellular morphology and presence of intracytoplasmic inclusions.
- Comparison of cytologic findings with clinical diagnoses.
Main Results:
- Intracytoplasmic inclusions, indicative of chlamydia, were identified in 8% (30/387) of patients.
- Predominant cell types (polymorphonuclear leukocytes, lymphocytes) were not specific for differentiating chlamydial from adenoviral conjunctivitis.
- The presence of plasma cells, Leber cells, blastoid cells, and multinucleated cells were more sensitive cytologic indicators.
Conclusions:
- Giemsa-stained conjunctival cytology is a valuable adjunctive method for supporting the clinical diagnosis of adult chlamydial conjunctivitis.
- Identifying specific cellular features can aid in directing further laboratory investigations.
- Ocular cytology enhances diagnostic accuracy in cases of suspected chlamydial eye infections.