title: Radiologic and pathologic correlation of aneurysmal bone cysts at unusual sites.
abstract: Aneurysmal bone cyst (ABC) is a benign solitary lesion. It usually occurs in the long bones but uncommonly in the calcaneum, mandible, femur and clavicle. Its frequency of occurrence in skull and mandible is 4%, clavicle and ribs is 5%, femur is 13% and foot is 3%. Only a few cases of ABC of these unusual sites have been reported till date. Here we report four cases of ABC at unusual sites namely the calcaneum, mandible, femur and clavicle diagnosed primarily on the basis of different imaging modalities and later confirmed on histopathology.
authors.affiliation: Department of Radio Diagnosis, Era's Lucknow Medical College, Lucknow, India.
authors.forename: Umesh C
authors.initials: UC
authors.lastname: Parashari
authors.forename: Shobha
authors.initials: S
authors.lastname: Khanduri
authors.forename: Deepika
authors.initials: D
authors.lastname: Upadhyay
authors.forename: Samarjit
authors.initials: S
authors.lastname: Bhadury
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Singhal
mesh_terms: D000293:Adolescent; D000328:Adult; D017824:Bone Cysts, Aneurysmal / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D002111:Calcaneus / Q000473:pathology / Q000601:surgery; D002648:Child; D002968:Clavicle / Q000473:pathology / Q000601:surgery; D005260:Female; D005269:Femur / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D055815:Young Adult