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Conjunctival keratoacanthoma
Fernanda Braga Perdigão1, Paulo de Tarso P Pierre-Filho, Renato José Mendonça Natalino
1Department of Ophthalmology, State University of Campinas (UNICAMP), Campinas, SP, Brazil. fernandaperdigao@yahoo.com.br
Revista Do Hospital Das Clinicas
|August 3, 2004
Summary
Conjunctival keratoacanthoma, a rare skin tumor, can mimic squamous cell carcinoma. This case highlights the importance of surgical excision and follow-up for accurate diagnosis and management of these rare conjunctival growths.
Area of Science:
- Ophthalmology
- Dermatology
- Oncology
Background:
- Keratoacanthoma (KA) is a common skin tumor, but exceptionally rare in the conjunctiva.
- Distinguishing conjunctival KA from squamous cell carcinoma (SCC) can be challenging due to overlapping clinical and histopathological features.
Observation:
- A case report of a 34-year-old woman presenting with a rapidly growing conjunctival mass.
- The mass exhibited a crateriform appearance on histopathological examination, consistent with atypical keratoacanthoma.
Findings:
- Complete surgical excision with a safety margin was performed to rule out SCC.
- The patient experienced no recurrence during a 2-year follow-up period, supporting the diagnosis of conjunctival keratoacanthoma.
Implications:
- Conjunctival keratoacanthoma is a rare diagnosis that requires careful consideration in the differential diagnosis of conjunctival squamous lesions.
- Complete surgical excision and vigilant follow-up are recommended for crateriform squamous proliferations of the conjunctiva to ensure accurate diagnosis and prevent recurrence.