title: An epidermal inclusion cyst mimicking chronic prepatellar bursitis: a case report.
abstract: Soft tissue lesions are common to the prepatellar region, often due to acute or chronic trauma, and most frequently include prepatellar bursitis, lipomas, and ganglion cysts. We report a case of a posttraumatic prepatellar epidermal inclusion cyst to highlight the diagnostic complexities that can arise with soft tissue lesions in this location. On the basis of our case report, treating orthopaedic surgeons should consider the possibility of an epidermal inclusion cyst in patients who present with atypical anterior soft tissue masses with a history of trauma to the anterior knee.
authors.affiliation: Division of Sports Medicine, Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York.
authors.forename: Meredith
authors.initials: M
authors.lastname: Mayo
authors.affiliation: Division of Sports Medicine, Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York.
authors.forename: Jordan
authors.initials: J
authors.lastname: Werner
authors.affiliation: Division of Sports Medicine, Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York.
authors.forename: Bhavesh
authors.initials: B
authors.lastname: Joshi
authors.affiliation: Department of Pathology, NYU Hospital for Joint Diseases, New York, New York.
authors.forename: Liugia
authors.initials: L
authors.lastname: Abramovici
authors.affiliation: Division of Sports Medicine, Department of Orthopaedic Surgery, NYU Hospital for Joint Diseases, New York, New York.
authors.forename: Eric J
authors.initials: EJ
authors.lastname: Strauss
mesh_terms: D000328:Adult; D002062:Bursitis / Q000175:diagnosis; D002908:Chronic Disease; D003937:Diagnosis, Differential; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000601:surgery; D006801:Humans; D007592:Joint Diseases / Q000175:diagnosis* / Q000601:surgery; D007718:Knee Injuries / Q000150:complications; D007719:Knee Joint / Q000601:surgery*; D008279:Magnetic Resonance Imaging; D008297:Male