Tophaceous pseudogout.
D000368:Aged; D002131:Calcium Pyrophosphate / Q000378:metabolism; D002805:Chondrocalcinosis / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D005384:Finger Joint / Q000000981:diagnostic imaging*; D006801:Humans; D008662:Metacarpophalangeal Joint / Q000000981:diagnostic imaging*; D008855:Microscopy, Electron, Scanning; D011859:Radiography
D002131:Calcium Pyrophosphate