title: Unusual cause of knee pain in the older adult.
abstract: An unusual cause of knee pain in the older adult is presented. Two case reports illustrate diagnostic approach and treatment options.
authors.forename: J H
authors.initials: JH
authors.lastname: Henry
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging*; D007720:Knee Prosthesis; D008297:Male; D010003:Osteoarthritis / Q000000981:diagnostic imaging* / Q000601:surgery; D010020:Osteonecrosis / Q000000981:diagnostic imaging* / Q000601:surgery; D011183:Postoperative Complications / Q000000981:diagnostic imaging; D011859:Radiography