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Climbing the Decision Tree

S M Chen
5 min readApr 7, 2020

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“One of the first duties of the physician is to educate the masses not to take medicine.”

  • Sir William Osler (1849–1919) Canadian physician; a founder of Johns Hopkins

Over 8 years ago, perhaps while doing my morning shave, I noticed a peculiar dark discoloration of a portion of the right side of my face extending below the sideburn almost to the chin. I thought it rather odd, but had no idea as to the cause. I felt fine and had no systemic symptoms. I had no good idea whether it came about with suddenness or gradually.

I decided to watch it. Rather than dissipating, it persisted, and may have even spread a bit.

I thought I’d better have it looked at.

The dermatologist in an adjacent city examined it, thought it might be a form of chloasma or post inflammatory hyperpigmentation (although I’d had no inflammation that I could recall) and gave me some bleaching cream. This did nothing.

On a subsequent visit he performed a punch biopsy.

When I went back, he said the biopsy was unsatisfactory; I’d have to have another one.

After 4 visits, I could sense he was grasping at invisible diagnostic straws. I decided to go elsewhere.

July, 2012. Although my head is turned rightward, note the discoloration/hyperpigmentation on my right lower face. Photo by T Gardea. Used with permission.

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