title: Calcaneal cysts. A radiological and anatomico-pathological study.
abstract: A radiological and anatomico-pathological study of 17 cases of calcaneal cysts in young patients without other known affections is documented. There are two essential histological characteristics of the fibrous wall lining the cysts: (1) hemosiderin deposits together with cholesterol and an associated giant cell reaction, which can be attributed to previous hemorrhages; (2) newly formed bone--similar to that observed in solitary cysts of the humerus and femur--applied to preexisting trabeculae which forms a bony wall explaining the typical radiological picture. These uncommon cysts may be the evolution of purely local hemorrhages in the trigonum calcis.
mesh_terms: D000293:Adolescent; D000328:Adult; D001845:Bone Cysts / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002111:Calcaneus / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography