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What Does Black Spot On Finger With Diabetic Nephropathy Indicate?

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Posted on Mon, 4 Aug 2014
Question: My father is a know case of DM2 and Diabetic nephropathy. He has developed a black spot on this finger. Kindly see the attached picture.
Please tell me if it is dangerous and what action should be taken. Should we apply Fusidic or zerina cream on it.
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Answered by Dr. Praveen Rodrigues (3 hours later)
Brief Answer:
Please get the region assessed for vascular issues

Detailed Answer:
Hi there XXXXXXX
I think it needs to be approached with a little more urgency.
Please go across to a surgeon & check get a Doppler study done to see the arterial/Venous flow to the finger especially as he is diabetic..it could be early gangrene settling in.
It well may be an infection leading onto gangrene & in either case a stronger antibiotic like Linezolid 600mg twice/daily is called for at the earliest.
There does not seem much use for a locally applied cream either fusidic or Xerina.
Good Luck & Godspeed!
Dr Praveen Rodrigues MD
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Praveen Rodrigues

Dermatologist

Practicing since :1993

Answered : 1193 Questions

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What Does Black Spot On Finger With Diabetic Nephropathy Indicate?

Brief Answer: Please get the region assessed for vascular issues Detailed Answer: Hi there XXXXXXX I think it needs to be approached with a little more urgency. Please go across to a surgeon & check get a Doppler study done to see the arterial/Venous flow to the finger especially as he is diabetic..it could be early gangrene settling in. It well may be an infection leading onto gangrene & in either case a stronger antibiotic like Linezolid 600mg twice/daily is called for at the earliest. There does not seem much use for a locally applied cream either fusidic or Xerina. Good Luck & Godspeed! Dr Praveen Rodrigues MD