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Localized infection by Serratia marcescens simulating a conjunctival neoplasm
J A Shields1, C L Shields, R C Eagle
1Oncology Service, Wills Eye Hospital, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
American Journal of Ophthalmology
|February 22, 2000
Summary
A rare case of Serratia marcescens infection mimicked a conjunctival neoplasm in an 80-year-old man. This finding highlights an unusual presentation of bacterial eye infection beyond typical contact lens-related cases.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Microbiology
Background:
- Serratia marcescens typically causes ocular infections like keratoconjunctivitis, often associated with contact lens wear.
- Conjunctival neoplasms can present with varied clinical signs, requiring accurate diagnosis.
Purpose of the Study:
- To document an unusual presentation of Serratia marcescens infection.
- To highlight its clinical resemblance to a conjunctival neoplasm.
Main Methods:
- A case report detailing a clinical presentation and diagnostic workup.
- Surgical excision and histopathological examination of the conjunctival mass.
- Microbiological staining and cultures of exudative material.
Main Results:
- An 80-year-old male without contact lens use presented with a conjunctival mass mimicking a neoplasm.
- Cultures and stains identified Serratia marcescens in the exudative material.
- Histopathology revealed an epithelial-lined cyst containing S. marcescens within macrophages.
Conclusions:
- Serratia marcescens can present as a conjunctival mass, simulating a neoplasm, even in non-contact lens wearers.
- This case expands the spectrum of ocular presentations for Serratia marcescens infections.
- Distinguishing infectious masses from true neoplasms is crucial in ophthalmology.