![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEguWTNQKy5cF7F9-NYuhI6lp1cyZrPc7HBEB9wpd9P1ZolyWxWLTZPwB8SEN8SVJCzkM5QXhsp5jW31RQGDlPQ0yDFOlwYoXOwCsQMEK6IIfJT3Jb4jd0qIEGsd1nfPgkRLE9-IiGjonIo3/s400/YuneSoftTissueIndex.jpg)
You take the amount of soft tissue at the tip of the finger (A) and compare it to the width of the base of the distal phalanx (B). If A is larger than B/4, then the amount of soft tissue is normal. If A is less than B/5, then the amount of soft tissue is abnormal.
The case above in a patient with scleroderma seemed borderline by eye. Let's see if the Yune soft tissue can help.
A = 2.9 mm
B = 13.4 mm
2.9 [?] (13.4/4)
2.9 < 3.35
∴ Not normal
2.9 [?] (13.4/5)
2.9 > 2.68
∴ Not abnormal
∴ Borderline.
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