6 下列關於Dupuytren’s disease的敘述，何者錯誤？

再發（recurrence）與病人症狀開始的年紀有關

是一手掌筋膜（palmar fascia）的疾患（disorder）

黑人與亞洲人較少有這種疾病

好發於40-60歲間

再發（recurrence）與病人症狀開始的年紀有關

is a fixed flexion contracture of the hand where the fingers bend towards the palm and cannot be fully extended (straightened)

Dupuytren's contracture is caused by underlying contractures of the palmar aponeurosis (or palmar fascia). The ring finger and little finger are the fingers most commonly affected. The middle finger may be affected in advanced cases, but the index finger and the thumb are nearly always spared. Dupuytren's contracture progresses slowly and is usually painless. In patients with this condition, the tissues under the skin on the palm of the hand thicken and shorten so that the tendonsconnected to the fingers cannot move freely. The palmar aponeurosis becomes hyperplastic and undergoes contracture.

Incidence increases after the age of 40; at this age men are affected more often than women. After the age of 80 the distribution is about even.