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An epidermal inclusion cyst mimicking chronic prepatellar bursitis: a case report
Meredith Mayo1, Jordan Werner1, Bhavesh Joshi1
1Division of Sports Medicine, Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York.
The Journal of Knee Surgery
|January 5, 2013
Summary
Prepatellar epidermal inclusion cysts can mimic common soft tissue masses after knee trauma. Orthopaedic surgeons should consider this diagnosis for atypical anterior knee lesions.
Area of Science:
- Orthopaedic Surgery
- Dermatopathology
Background:
- Prepatellar soft tissue lesions commonly result from trauma.
- Frequent diagnoses include prepatellar bursitis, lipomas, and ganglion cysts.
Observation:
- A case of a posttraumatic prepatellar epidermal inclusion cyst is presented.
- This lesion mimicked more common soft tissue masses in the anterior knee region.
Findings:
- Epidermal inclusion cysts can occur in the prepatellar region following trauma.
- Diagnostic challenges exist for soft tissue masses in this anatomical location.
Implications:
- Consider epidermal inclusion cysts in the differential diagnosis of atypical anterior knee masses.
- A history of trauma is a key factor in suspecting this diagnosis in orthopaedic patients.