title: More causes of button sequestrum.
abstract: Two cases illustrating the association of button sequestra with Paget's disease and multiple myeloma are presented, followed by a brief review of the roentgenologic skull manifestations of these diseases. The number of conditions having button sequestra now stands at thirteen. The sign has no specific diagnostic significance.
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D008875:Middle Aged; D009101:Multiple Myeloma / Q000150:complications* / Q000000981:diagnostic imaging; D010001:Osteitis Deformans / Q000150:complications* / Q000000981:diagnostic imaging; D010020:Osteonecrosis / Q000209:etiology*; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging