title: Painful lytic lesion of the left femur in an adult male.
mesh_terms: D000328:Adult; D001859:Bone Neoplasms / Q000175:diagnosis* / Q000648:ultrastructure; D002462:Cell Membrane / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D003599:Cytoskeleton / Q000648:ultrastructure; D003937:Diagnosis, Differential; D005269:Femur; D018219:Histiocytoma, Benign Fibrous / Q000175:diagnosis; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis* / Q000648:ultrastructure; D008297:Male; D009940:Organoids / Q000648:ultrastructure