title: Pathologic quiz case: right knee pain in a 29-year-old man. Chondroblastoma with aneurysmal bone cyst formation.
authors.affiliation: Department of Pathology, Saint Barnabas Medical Center, Livingston, NJ 07039, USA.
authors.forename: Rosanna
authors.initials: R
authors.lastname: Abellar
authors.forename: Steven G
authors.initials: SG
authors.lastname: Robbins
authors.forename: Lester
authors.initials: L
authors.lastname: Kalisher
authors.forename: Jonathan F
authors.initials: JF
authors.lastname: Lara
mesh_terms: D000328:Adult; D018771:Arthralgia / Q000209:etiology*; D017824:Bone Cysts, Aneurysmal / Q000150:complications / Q000175:diagnosis*; D001859:Bone Neoplasms / Q000175:diagnosis*; D002804:Chondroblastoma / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007719:Knee Joint / Q000473:pathology*; D008297:Male