Benign cortical defect: site for an avulsion fracture.
A benign cortical defect in a bone may present itself as a weak site for muscle attachment resulting in an avulsion injury. Such a benign cortical defect may be mistaken for a malignant tumor when the avulsion injury excites irregular, laminated periosteal reaction. We report three patients in whom avulsion fractures occurred at the site of pre-existing benign cortical defects in the distal femur.
Kumar
R
R
Swischuk
L E
LE
Madewell
J E
JE
D000293:Adolescent; D000328:Adult; D001845:Bone Cysts / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D005264:Femoral Fractures / Q000000981:diagnostic imaging*; D005266:Femoral Neoplasms / Q000000981:diagnostic imaging; D005269:Femur / Q000000981:diagnostic imaging; D006801:Humans; D007718:Knee Injuries / Q000000981:diagnostic imaging*; D008297:Male; D012516:Osteosarcoma / Q000000981:diagnostic imaging; D011859:Radiography; D014945:Wound Healing