A member asked:

Why is biopsy needed for discolouration and swelling of lower leg that has nodules under the skin? how much chance that it might be cancer?

3 doctors weighed in across 3 answers

Rule out...: My first concern is leukocytoclastic vasculitis. I trust this is not kaposi's, but there are many other concerning entities that a biopsy is required to diagnose. Talk about the results with your physician.

Answered 3/21/2013

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Dr. Travis Kidner answered

Specializes in Surgical Oncology

See your derm: Any new lesions involving your skin should be brought to the attention of your friendly dermatologist.

Answered 4/4/2013

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Dr. Marvin Den answered

Specializes in Internal Medicine

To determine its cau: There could be many causes of these lesions. A biopsy can define what it is.

Answered 4/4/2013

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