title: [Lymphoma-induced imitation of knee prosthesis loosening].
abstract: Persistent pain after knee arthroplasty is often caused by aseptic loosening, implant failure, unphysiological alignment (especially of the patella), infection, scars and neuroma. In a case of a 70-year-old patient pain and swelling after knee arthroplasty persisted despite three revision procedures. Surprisingly, a non-Hodgkin's lymphoma was found in femoral bone marrow histology. A metastatic non-Hodgkin's lymphoma as cause of pain and swelling after knee arthroplasty, like in this case, is rare and has not been described up to now.
authors.affiliation: Orthopädische Klinik und Poliklinik, Ludwig-Maximilians-Universität München.
authors.forename: C
authors.initials: C
authors.lastname: Pellengahr
authors.forename: V
authors.initials: V
authors.lastname: Jansson
authors.forename: F W
authors.initials: FW
authors.lastname: Hagena
authors.forename: H J
authors.initials: HJ
authors.lastname: Refior
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005266:Femoral Neoplasms / Q000175:diagnosis*; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging; D007720:Knee Prosthesis; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000175:diagnosis*; D008297:Male; D010149:Postoperative Pain / Q000209:etiology*; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation