Accessory ossicles and sesamoid bones of the ankle and foot: imaging findings, clinical significance and differential diagnosis.
Accessory ossicles and sesamoid bones are frequent findings in routine radiographs of the ankle and foot. They are commonly considered fortuitous and unrelated to the patient's complaint; however, they may eventually cause painful syndromes or degenerative changes in response to overuse and trauma. They may also suffer or simulate fractures. Our aim was to review, illustrate and discuss the imaging findings of some of the more frequent accessory ossicles and sesamoid bones of the ankle and foot region, with particular emphasis on those that may be of clinical significance or simulate fractures.
Mellado
J M
JM
Institut de Diagnòstic per la Imatge, Hospital Universitari de Tarragona Joan XXIII, Carrer Doctor Mallafrè Guasch 4, 43007, Tarragona, Spain. rmidi@hjxxiii.scs.es
Ramos
A
A
Salvadó
E
E
Camins
A
A
Danús
M
M
Saurí
A
A
D000328:Adult; D000368:Aged; D002111:Calcaneus / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005360:Fibula / Q000473:pathology; D005529:Foot Bones / Q000473:pathology*; D050723:Fractures, Bone / Q000175:diagnosis; D006214:Hallux / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008682:Metatarsal Bones / Q000473:pathology; D008875:Middle Aged; D012716:Sesamoid Bones / Q000473:pathology*; D013628:Talus / Q000473:pathology; D013639:Tarsal Bones / Q000473:pathology*; D013710:Tendons / Q000473:pathology; D013977:Tibia / Q000473:pathology; D014057:Tomography, X-Ray Computed; D055815:Young Adult