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What Causes Dark Pigmented Blotches On Feet?

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Posted on Tue, 9 Dec 2014
Question: I have these strange dark pigmented blotches on my feet (at my toes) and ankles. They are perfectly symmetric. I noticed them about 18 months ago.
Are they treatable? Are they signs of a more serious problem? The dark ink spot on the left photo is a mark on the picture.
doctor
Answered by Dr. Dr. Kakkar (29 minutes later)
Brief Answer:
Schamburg's disease

Detailed Answer:
Hello. Thanks for writing to us at healthcaremagic

I have gone through all the photographs and I can appreciate the dark/pigmented patches on the dorsum of both the feet as well as outer side of left lower leg and feet.

I will keep a possibility of Schamburg's Disease.

In Schamburg's disease, lesions are mostly on the lower limbs and initially consist of pinhead-sized reddish lesions, resembling grains of cayenne-pepper that later on form irregular plaques of orange or brown pigmentation (owing to deposition of hemosiderin).

The condition is asymptomatic; slight itching may, however, be an associated feature.
The etiology is largely unknown. Venous insufficiency, exercise, gravitational dependency, capillary fragility are important co-factors.

No medical intervention is of proven benefit for the treatment of Schamburg's disease.
It is not a sign of a serious problem at all and counselling is all that is necessary in most cases.

Schamburg's disease is chronic and the lesions persist as such or extend with time.

Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Dr. Kakkar (1 hour later)
I am very fit, Have no venous issues. They never itch or have any sensation whatsoever. The weird thing is they are so perfectly symmetrical. That hes lead me to believe that I have some sort of liver disorder, although I have never looked that up or anything like that. Also, they have not gotten any worse and are the exact same as when I first discovered them.
So, you are saying that there is no serious issue and there is no treatment.
IF that is the case or not, will it worsen and grow in coverage area?
doctor
Answered by Dr. Dr. Kakkar (4 hours later)
Brief Answer:
Schamburg's disease

Detailed Answer:
Hi.

The spots in Schamburg's disease usually stay as it is Or they may gradually spread upwards ever so slowly but they remain always confined to the legs.
This is nothing serious to be worried about.
It is a benign condition and counselling about its nature is all that is required.
You may take an Oral Vitamin C supplement once daily.

Regards
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. Dr. Kakkar

Dermatologist

Practicing since :2002

Answered : 9612 Questions

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What Causes Dark Pigmented Blotches On Feet?

Brief Answer: Schamburg's disease Detailed Answer: Hello. Thanks for writing to us at healthcaremagic I have gone through all the photographs and I can appreciate the dark/pigmented patches on the dorsum of both the feet as well as outer side of left lower leg and feet. I will keep a possibility of Schamburg's Disease. In Schamburg's disease, lesions are mostly on the lower limbs and initially consist of pinhead-sized reddish lesions, resembling grains of cayenne-pepper that later on form irregular plaques of orange or brown pigmentation (owing to deposition of hemosiderin). The condition is asymptomatic; slight itching may, however, be an associated feature. The etiology is largely unknown. Venous insufficiency, exercise, gravitational dependency, capillary fragility are important co-factors. No medical intervention is of proven benefit for the treatment of Schamburg's disease. It is not a sign of a serious problem at all and counselling is all that is necessary in most cases. Schamburg's disease is chronic and the lesions persist as such or extend with time. Regards