From: Bryan C. Markinson, DPM
It is a little bit unsettling to ponder the original query by Name Withheld and the response by Dr. Samimi. It is true that metastatic cancer to the foot (generally considered rare) usually indicates a poorer prognosis, but so does all metastatic disease. MORE IMPORTANTLY, in metastatic disease to the foot, and specifically the nail unit, it is the first knowledge that any cancer exists in the patient anywhere in a way more than casual percentage of cases. In nail units, it approaches 50%. This puts us in a position to get the patient diagnosed and a chance at treatment for the original tumor, even though prognosis is naturally poorer.
When a patient with a known history of cancer (as stated in original post) presents with a foot complaint or lesion, a ...
Editor's note: Dr. Markinson's extended-length letter can be read here.