title: An uncommon cause of anterior knee pain: patellar chondroma.
abstract: A 16-year-old boy presented with a patellar mass and anterior knee pain without any trauma. On physical and radiologic assessment, a mass at the superolateral edge of the patella and a hyperintense lesion on T2 sequences of magnetic resonance imaging was detected. Excisional biopsy revealed a chondroma of patella. Primary bone tumors of the patella are extremely rare and occurence of chondroma in this localization is very uncommon. Although anterior knee pain is a very frequent and usually harmless, it is essential to consider the more severe disorders such as bone tumors.
authors.affiliation: Departments of *Orthopaedics and Traumatology ‡Pediatrics, Canakkale 18 Mart University, Canakkale †Department of Orthopaedics and Traumatology, Afyon Kocatepe University, Afyon §Department of Physical Medicine and Rehabilitation, Bozok University, Yozgat, Turkey.
authors.forename: Burak
authors.initials: B
authors.lastname: Kaymaz
authors.forename: Mehmet
authors.initials: M
authors.lastname: Eroglu
authors.forename: Nazan
authors.initials: N
authors.lastname: Kaymaz
authors.forename: Mehmet
authors.initials: M
authors.lastname: Ucar
mesh_terms: D000293:Adolescent; D018771:Arthralgia / Q000209:etiology*; D001859:Bone Neoplasms / Q000150:complications* / Q000473:pathology; D002812:Chondroma / Q000150:complications* / Q000473:pathology; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008297:Male; D010329:Patella / Q000473:pathology*