title: [Bone within bone of the vertebral body].
abstract: The finding of a small vertebral body inside one or more vertebral bodies is not commonly observed even if it is present in many conditions, but it lacks both a systemic description and an interpretative evaluation. After examining different radiological aspects we tried to find out their meaning which is explained by three different possible patterns: a physiological pattern in the newborn; a dystrophic pattern due to failure in prowing; and last a strengthening and support for the reduced resistance of the bone.
mesh_terms: D001859:Bone Neoplasms / Q000150:complications; D006391:Hemangioma / Q000150:complications; D006527:Hepatolenticular Degeneration / Q000150:complications; D006801:Humans; D009101:Multiple Myeloma / Q000150:complications; D010001:Osteitis Deformans / Q000150:complications; D011859:Radiography; D013131:Spine / Q000002:abnormalities* / Q000000981:diagnostic imaging
vernacular_title: "L'osso nell'osso" del corpo vertebrale.