title: [A female runner with a painful knee].
abstract: A 36-year-old, healthy woman presented with pain in her left knee. The X-ray of this knee showed a lytic tumour. The MRI scan also revealed this lesion, which was highly suspicious for a giant cell tumour of the distal femur. She was treated in a specialised centre.
authors.affiliation: Gelre Ziekenhuizen, afd. Orthopedie, Apeldoorn.
authors.forename: Philip
authors.initials: P
authors.lastname: Scheurer
authors.forename: Karin E
authors.initials: KE
authors.lastname: de Kroon
mesh_terms: D005260:Female; D005870:Giant Cell Tumors / Q000150:complications / Q000175:diagnosis*; D006801:Humans; D007719:Knee Joint / Q000473:pathology; D008279:Magnetic Resonance Imaging; D010146:Pain / Q000175:diagnosis / Q000209:etiology*; D012983:Soft Tissue Neoplasms / Q000150:complications / Q000175:diagnosis*