90 黃小姐罹患類風濕性關節炎,多隻手指呈現近端指節關節過度伸張(proximal interphalangeal joint hyperextension),遠端指節關節屈曲變形(distal interphalangeal joint flexion),這是屬於何種變形?
(A) boutonnière deformity
(B) swan-neck deformity
(C) mallet finger
(D) claw finger deformity

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統計: A(3), B(2), C(0), D(1), E(0) #2978039